What are the main parts of a mechanical keyboard

  A mechanical keyboard is a keyboard that uses mechanical switches. It is different from a traditional membrane keyboard in terms of key structure and touch. This article will explain the basic structure of a mechanical keyboard.with aula gaming keyboard For example, if it continues to develop, it will definitely become the benchmark of the industry and play an important role in leading the market. https://www.aulastar.com/

  

  Composition of mechanical keyboard

  

  What are the main parts of a mechanical keyboard?

  

  AULA F98 PRO Custom Mechanical Keyboard

  

  Mechanical keyboard mainly consists of the following six parts:

  

  1. Keycap: The keycap is the outermost part of a mechanical keyboard and is usually made of plastic. The keycap is marked with characters or icons to indicate the function of the key.

  

  2. Shaft: The shaft is the most important part of a mechanical keyboard. It is located under the keycap and is responsible for converting key operations into electrical signals. Mechanical keyboards use different types of shafts, such as blue shaft, red shaft, brown shaft, etc. Each shaft has a unique trigger force, trigger sound, and trigger method.

  

  3. Spring: The spring is located inside the shaft and restores the key to its original state by providing elastic force. When the key is pressed, the spring is compressed, and when the key is released, the elastic force of the spring causes the key to bounce. The material and strength of the spring will affect the rebound force and feel of the key.

  

  4. Key shaft: The key shaft is the part that connects the keycap and the shaft body. It realizes key triggering by transferring force between the keycap and the shaft body. The key shaft is usually made of plastic or metal, which has certain durability and stability.

  

  5. Circuit board: The circuit board of the mechanical keyboard carries the circuit and chip of the keyboard and is responsible for transmitting the key trigger signal to the computer. The circuit board may also contain other functional components, such as LED lights, encoders, etc.

  

  6. Shell: The shell is the protective structure of the mechanical keyboard, usually made of plastic material. The shell protects the internal components of the keyboard and provides a comfortable feel and appearance design.

LED Display Solution And Led Display Cost

  With the popularity of LED screens, many customers do not have an accurate understanding of led screen. The pixel pitch and price of the LED screens they need, or feel that the resolution and price is too different from their expectations. Based on this situation, we would like to share with you a specific analysis about how to choose exact pixel pitch price structure of LED screens:As it happens, many people are killed led display And bring more benefits, make it flourish, and promote the industry greatly. https://www.atop-led.com/

  

  How to confirm led display solution

  

  Choosing the right LED display requires consideration of a number of factors, including resolution, size, brightness, color accuracy, viewing angle, longevity, and of course, budget. Here’s a step-by-step guide to help you make the right choice:

  

  1. Determine the purpose of the display

  

  Will the LED display be used indoors or outdoors? Will it be used for advertising, entertainment or information displays? The purpose of your LED display will greatly influence the specifications you need.

  

  Outdoor led displayIndoor led display

  

  Outdoor led display Indoor led display

  

  2. Determining size and resolution

  

  The size of the display you need will depend on its location and the viewing distance. The farther away the average viewer, the larger the screen you¨ll need.

  

  Resolution refers to the number of pixels displayed and it is usually described by the terms P1, P2, P3, etc., where ‘P’ stands for ‘pixel’ and the number indicates the distance in millimeters between each pixel. A P2 display, for example, has a pixel pitch of 2mm. The lower the number, the higher the resolution, but also the higher the cost.

  

  led display width and height

  

  3. Consider brightness

  

  Brightness (measured in nits) is especially important for outdoor displays or well-lit indoor displays. Outdoor LED screens should be 5000-10000 nits to ensure that the image can be seen even in direct sunlight. Indoor screens typically require 600-1200 nits.

  

  brightness

  

  4. Check color accuracy and contrast

  

  A high quality LED display should be able to render accurate colors and deep blacks. Contrast (the difference between the darkest blacks and the brightest whites the screen can render) is also an important factor to consider. The higher the contrast, the better the image quality.

  

  5. Evaluating viewing angle

  

  The viewing angle is the maximum angle at which the monitor can be viewed with acceptable visual performance. A wide viewing angle of 140 degrees or greater is recommended for the average viewer in all positions.

  

  wide viewing angle led screen

  

  6. Recognizing longevity and warranty

  

  An LED display is a major investment, so you need to make sure it lasts a long time. A good quality LED screen should have a lifespan of 100,000 hours (about 11 years if it runs 24/7). Also consider the warranty period and what it covers.

  

  7. Budgeting

  

  The cost of LED displays varies greatly, depending on their specification and manufacturer. When budgeting, it is important to consider not only the purchase price, but also the installation costs and potential energy costs.

Eyeshadow brush and eye shadow color matching tips

  For many girls, it only takes two brushes to paint eye shadow, but if you want to pursue a more perfect and clean makeup, you need to use all kinds of small brushes reasonably. Of course, two brushes can’t solve it. In addition, there is the color matching of eye shadow. Some young sisters may not know much about the rules of eye shadow matching. This article is just a little knowledge about the selection, use and color matching of makeup brushes ~ Then let’s get started ~In order to achieve the goal, makeup brush set Turn cocoon into butterfly, constantly polish product quality, improve business ability, and finally have a place in the market. https://lsmakeupbrush.com

  

  First, choose an eye shadow brush

  

  Priming brush

  

  This brush with bristles of about one centimeter in length is the largest eye shadow brush, which is mainly used to make the whole eyelid bottom. The usage is to smudge the whole eye socket with light eye shadow.

  

  Color spreading brush

  

  Medium and small eye shadow brushes are used to superimpose other dark colors on the background color. The skill of using them is to bring colors from bottom to top. It is recommended to prepare two medium eye shadow brushes, one with light color and the other with dark color.

  

  Detail smudge brush

  

  This eye shadow brush looks the same as the base brush, but it is actually the smallest size. The bristles may be only about 3mm, which is used to superimpose the heavy colors at the end of the eyes, or to draw some dark colors into eyeliner.

  

  Contour brush

  

  This brush is bigger than the base brush. It can be used after painting the whole eye shadow, without any powder. It just sweeps the edge of eye makeup to make the color more natural without obvious edge feeling, and it can also be used to sweep the nose shadow.

  

  Eye shadow color

  

  If it is not necessary for special occasions, it is best not to use too many colors in an eye makeup.

  

  The background color means that the color of a large area of eye socket must be matte, not necessarily light, but it is best to be matte without flashing, which will make the whole eye feel less swollen.

  

  The color superimposed on the background color is called the theme color. You can choose a brighter color, and the smudge range is less than the background color. How to say this range? You need to practice more. If you are a girl with double eyelids, you should control it around two or three millimeters. The color that is aggravated in the triangle area at the end of the eye is called the finishing touch color ~ when sweeping the end of the eye, bring a little to the lower eyelid part of the end of the eye to make the eyes deeper.

  

  Finally, brighten the color, with sequins or flashing colors, embellish the eyes, eyes and lower eyelids, which can make the eyes more stereoscopic and deep ~

Harris participated in the presidential campaign against Trump and received high approval ratings

  While the Olympic Games are in full swing in Paris, France, the U.S. presidential election has also become a hot topic of global attention. Since Trump got a higher approval rating than Biden in the assassination, there has been a “dark horse” on the road to the US presidential election. Harris, known as the “Black widow,” has become a strong opponent of Trump and has gained very high support rates in a very short period of time. European and American media said that Harris is expected to become the first female president of the United States.In some cases, business bodyguard The advantages will become more and more obvious, and it will be able to develop indomitable after market tests. http://huanyubodyguard.com/

 

  

  The reason why Harris received a high vote support rate in the short term is that Harris openly supported women’s rights, supported illegal immigrant groups, and expressed love for women and children in the speech process. During Harris’ speech in the United States, his mental state was very full, and there were bodyguards around Harris for personal security protection.

  

  The reason why Harris can become a strong opponent against Trump in a short period of time, and she is of Indian descent and black origin has a considerable relationship, plus Harris is a woman, easy to get the support of feminists around the world. In addition, what Harris supports is not the same as what Trump supports, so in the short term, Harris has shown a good advantage in the US presidential election. Harris, like some rich women in Shenzhen, China, is calm and confident, has a strong personality charm, and has a strong sense of safety and self-protection. The female rich in Shenzhen, China, will hire bodyguards from the Huanyu Brothers bodyguard company in Shenzhen, China, and Harris will bring elite bodyguards to the United States to give speeches and escort personal safety.

  

  As for whether Harris can defeat Trump to become a female president in the history of the United States, it also depends on Harris’s late vote support rate and the public opinion of the American people, but Harris has now become a fierce enemy on Trump’s campaign road.

Why Should I Opt for a Custom Snus Tin Over a Standard One

  When it comes to packaging snus, choosing the right tin is crucial for both preserving product quality and enhancing brand appeal. With various options available, many businesses face the decision of whether to opt for a standard snus tin or invest in a custom snus tin. Here¨s why a custom snus tin might be the better choice for your brand.The above conclusions show that custom snus can To a great extent, it can bring new vitality to the market and make the industry develop well. https://www.snuscan.com/

  

  

  1. Unique Branding Opportunities

  

  A custom snus tin allows you to incorporate your brand¨s logo, colors, and design elements, creating a unique and recognizable packaging solution. This not only helps your product stand out on the shelf but also reinforces your brand identity. Custom designs can create a memorable impression and differentiate your product from competitors in the marketplace.

  

  2. Enhanced Product Protection

  

  While standard snus tins provide basic protection, custom tins can be tailored to offer superior sealing and durability. You can select materials and design features that better preserve the freshness and quality of your snus. A well-designed custom tin ensures that your product remains intact and fresh throughout its lifecycle, from storage to consumption.

  

  

  3. Improved Customer Experience

  

  Custom snus tins are designed to enhance the user experience. Features such as easy-to-open lids, ergonomic shapes, and personalized touches can make your product more convenient and enjoyable for customers. A well-designed tin adds a touch of premium quality, contributing to a positive customer experience and encouraging repeat purchases.

  

  4. Increased Market Appeal

  

  Investing in custom snus tins can give your product a competitive edge in the market. Unique and aesthetically pleasing packaging often attracts more attention and can influence buying decisions. By offering a custom tin, you align your product with premium positioning, which can be particularly beneficial in niche markets or upscale retail environments.

  

  5. Effective Marketing Tool

  

  Custom snus tins serve as an effective marketing tool, especially when distributed through wholesale channels or by snus tin distributors. Each tin acts as a mini billboard for your brand, promoting your product with every use. Additionally, custom tins can be used in promotional campaigns and giveaways, further increasing brand visibility and consumer engagement.

  

  

  6. Better Alignment with Sustainability Goals

  

  Many custom snus tin manufacturers offer eco-friendly options that align with sustainability goals. By choosing a custom tin that uses recyclable or biodegradable materials, you can demonstrate your commitment to environmental responsibility. This not only appeals to eco-conscious consumers but also helps meet regulatory requirements and enhances your brand¨s corporate social responsibility profile.

  

  7. Tailored Solutions for Wholesale and Distribution

  

  Custom snus tin wholesalers and distributors can provide solutions tailored to your specific needs. Whether you require bulk orders or specialized packaging features, working with a custom snus tin distributor ensures that you get a product that meets your requirements and enhances your supply chain efficiency.

  

  Conclusion

  

  Opting for a custom snus tin over a standard one offers numerous benefits, from unique branding opportunities and enhanced product protection to improved customer experience and market appeal. By investing in custom packaging, you not only set your product apart but also create a lasting impression that can drive brand loyalty and growth. Whether you¨re looking to explore snus tin options for sale, seek wholesale opportunities, or partner with a snus tin distributor, custom tins provide a valuable solution for elevating your product and brand.

What Are the Differences between Cold Heading and Cold Extrusion

  Cold heading and cold extrusion are basically deformation processes under the same conditions, but they are different in operation. Cold heading is a forging deformation of smaller workpieces and is often used in the fastener industry. Cold extrusion is an extrusion deformation of larger workpieces and has a wide range of uses.To get brand praise, non-standard fasteners price It is necessary to have the spirit of constantly improving the quality of products, but also to have a bunch of eternal heart fire. https://jieruifasteners.com/

  

  1. What is cold extrusion

  

  Cold extrusion is a processing method in which a metal blank is placed in a cold extrusion die cavity and, at room temperature, a punch fixed on the press is used to apply pressure to the blank to cause the metal blank to undergo plastic deformation to produce parts. Obviously, cold extrusion processing relies on the die to control the flow of metal and relies on the large-scale transfer of metal volume to form parts. In terms of extrusion equipment, my country has the ability to design and manufacture extrusion presses of various tonnages. In addition to using general mechanical presses, hydraulic presses, and cold extrusion presses, friction presses and high-speed and high-energy equipment have also been successfully used for cold extrusion production.

  

  At present, cold extrusion technology has been widely used in industrial sectors such as fasteners, machinery, instruments, electrical appliances, light industry, aerospace, shipbuilding, and military industry, and has become one of the indispensable and important processing methods in metal plastic volume forming technology. With the advancement of science and technology and the continuous improvement of product technical requirements in the automobile, motorcycle, household appliances and other industries, cold extrusion production technology has gradually become the development direction of refined production of small and medium-sized forgings.

  

  

  2. What is cold heading

  

  Cold heading is one of the new processes of metal pressure processing with little or no cutting. It is a processing method that uses the plastic deformation of metal under the action of external force, and with the help of a mold, the metal volume is redistributed and transferred to form the required parts or blanks. The cold heading process is most suitable for the production of non standard fasteners such as bolts, screws, nuts, rivets, and pins. The commonly used equipment for cold heading is a dedicated cold heading machine. If the production volume is not too large, it can also be replaced by a crank press or a friction press.

  

  Cold heading technology has high productivity, good product quality, and greatly reduces material consumption, reduces production costs, and improves working conditions. Therefore, it is more and more widely used in mechanical manufacturing, especially in the production of standard fasteners. Among them, the most representative products produced by multi-station cold heading machines are bolts, screws and nuts.

  

  3. Are cold heading and cold extrusion the same thing?

  

  Cold heading and cold extrusion are basically deformation processes under the same conditions, but they are different in operation. Cold heading is a forging deformation of smaller workpieces and is often used in the fastener industry. Cold extrusion, on the other hand, is an extrusion deformation of larger workpieces and is widely used; cold heading is equivalent to a branch of cold extrusion. Simply put, in the process of making bolts, hexagonal head forming is cold heading, and rod diameter reduction is cold extrusion (positive extrusion). Non-cut hexagonal flange bolts (multi-station forming) have both cold heading and cold extrusion. The front shaping of hexagonal nuts is only cold heading, and the hole extrusion in the back process is cold extrusion (positive and negative extrusion).

Why a Thermos Cup Is Not Suitable for Making Tea Nutrition Insights

  Thermos cups are excellent for keeping beverages hot or cold for extended periods. However, when it comes to making tea, there are several reasons why using a thermos cup might not be the best choice. This article will explore why a thermos cup is not suitable for making tea, focusing on the nutritional and taste-related factors that come into play.According to related reports, Insulated stainless steel mug To a large extent, it leads the changes of market conditions. https://www.ervanflask.com/

  

  1. Over-Brewing of Tea

  

  One of the main reasons a thermos cup is not ideal for making tea is the risk of over-brewing. When tea leaves are left in hot water for too long, they can release excessive tannins and other compounds that can make the tea taste bitter and astringent. In a thermos, the temperature remains high for an extended period, leading to continuous brewing, which can result in an unpleasant taste and diminished quality of the tea.

  

  thermos cups

  

  2. Nutrient Degradation

  

  Tea contains various antioxidants, vitamins, and other beneficial compounds that contribute to its health benefits. However, prolonged exposure to high temperatures can degrade these nutrients. In a thermos cup, the sustained heat can lead to a loss of these essential nutrients, reducing the overall nutritional value of the tea.

  

  3. Alteration of Flavor Profile

  

  Tea is best enjoyed when brewed at specific temperatures that vary depending on the type of tea. For example, green tea should be brewed at a lower temperature (around 70-80<C) to preserve its delicate flavors, while black tea requires slightly higher temperatures (around 90-100<C). A thermos cup, however, maintains a uniformly high temperature, which can alter the natural flavor profile of the tea, leading to a less enjoyable drinking experience.

  

  4. Potential Release of Harmful Compounds

  

  Certain types of tea, when brewed for too long or at too high a temperature, can release compounds that may not be beneficial to health. For instance, excessive tannins not only affect the taste but can also interfere with the absorption of essential nutrients like iron. In addition, if the thermos is made from materials that react with the tea, it could lead to the release of harmful substances into the beverage.

  

  5. Inconvenience of Cleaning

  

  Brewing tea directly in a thermos can make cleaning the cup more challenging. Tea leaves can get stuck in the crevices, and the lingering tea residue can affect the taste of other beverages you might want to carry in the thermos later on. Over time, this can lead to a buildup of unpleasant odors and stains, further reducing the appeal of using a thermos for tea-making.

  

  thermos cups

  

  Conclusion

  

  While thermos cups are fantastic for keeping your beverages at the desired temperature, they are not the best option for making tea. The risk of over-brewing, nutrient degradation, altered flavor profiles, and potential health risks make thermos cups less suitable for tea preparation. Instead, consider brewing your tea in a traditional teapot or a specialized tea maker and then transferring it to the thermos if you need to keep it warm. This approach ensures that you enjoy your tea at its best, both in terms of flavor and nutritional value.

  

  For high-quality thermos cups designed to keep your beverages at the perfect temperature, visit Ervan Flask. Their range of products ensures that your drinks remain fresh and enjoyable throughout the day.

Outdoor Rental Hard connection LED Screen

  We often encounter the term hard connection in the LED display project, and many customers do not know what hard connection means, nor do they know what its advantages are, and where it differs from ordinary connection methods.At the same time, led video wall It is no longer a relatively unfamiliar industry, and it enters the public’s sight more and more frequently, gaining more attention and recognition. https://www.atop-led.com/

  

  In fact, the so-called hard-connected LED display is a concept introduced in recent years, in simple terms, hard connection is all the connection lines are integrated in the box or module, in the installation is not required to connect the line, only need to plug all the modules or boxes in accordance with the interface can reduce the bondage of the line, installation is also faster, aesthetic increased a lot.

  

  At present, the traditional connection method LED display is composed of boxes or modules, a box is about equal to the size of four modules, in the splicing between them to be connected through the signal line and the power line, so as to achieve signal sharing, so that the image can be enlarged. Under traditional circumstances, the connection is in the LED display module or box behind the wired slot, the need for technical personnel to connect one by one, so we see this traditional structure after installation in the LED display behind the scattered distribution of many lines, looks more chaotic, while the installation is also more laborious, the need to plug and plug one by one, resulting in longer installation time, At the same time, if there is a problem in the later stage, it is difficult to troubleshoot.

  

  What is hard connection?

  

  In order to change the traditional way of soft connection with a variety of lines, a more beautiful and simple hard-connected LED display structure is introduced, it puts all the lines all concentrated in the box or module inside, so that you can’t see any lines on the surface, but there are two interfaces on the upper and lower side, technicians only need to connect the interface directly together during installation. In this way, installation and maintenance can be achieved either on the side or behind the LED screen.

  

  At present, the hard-connected LED display is mostly a box structure, and of course, there are modules that use hard-connected, which greatly integrates the collectibility of the LED structure, making the entire installation easier.

  

  Advantages of hard connectivity

  

  The hard connection of the LED display has no line, on the one hand, the installation speed is improved, on the other hand, it also reduces the occurrence of some after-sales problems caused by the fault of the line, thereby reducing the after-sales rate. In addition, there is no connection of various lines, which also makes the entire LED display more beautiful and looks more tidy. At the same time, the hard connection of the LED display can also realize the pre-maintenance installation, so that there is no need to reserve the maintenance space after installation, which greatly saves the space requirements and makes maintenance more convenient.

  

  In fact, the hard connection of the LED display is to integrate the line in the box or module, reduce the bondage of the line, make the installation more simple, the screen is more beautiful, and the after-sales is more convenient. With its advantages continue to reflect, the hard-connected structure of the LED screen has gradually become a mainstream connection method.

  

  What’s main features of hard connection led screen?

  

  Perfect Cabinet Design With Each Part

  

  ATOPLED hard connection Rental LED display series is designed with aesthetics and industrial idea. excellent product came in all details from cabinet handle. cabinet fxied slot, fast lock, magnet adsorption module, module installation knob, Power& signal connector, detachable power boxing, and more

Eyeshadow brush and eye shadow color matching tips

  For many girls, it only takes two brushes to paint eye shadow, but if you want to pursue a more perfect and clean makeup, you need to use all kinds of small brushes reasonably. Of course, two brushes can’t solve it. In addition, there is the color matching of eye shadow. Some young sisters may not know much about the rules of eye shadow matching. This article is just a little knowledge about the selection, use and color matching of makeup brushes ~ Then let’s get started ~In order to facilitate users to have a better experience, makeup brush set Many attempts have been made to upgrade the products, and the results are also very good, and the market performance tends to be in a good state. https://lsmakeupbrush.com

  

  First, choose an eye shadow brush

  

  Priming brush

  

  This brush with bristles of about one centimeter in length is the largest eye shadow brush, which is mainly used to make the whole eyelid bottom. The usage is to smudge the whole eye socket with light eye shadow.

  

  Color spreading brush

  

  Medium and small eye shadow brushes are used to superimpose other dark colors on the background color. The skill of using them is to bring colors from bottom to top. It is recommended to prepare two medium eye shadow brushes, one with light color and the other with dark color.

  

  Detail smudge brush

  

  This eye shadow brush looks the same as the base brush, but it is actually the smallest size. The bristles may be only about 3mm, which is used to superimpose the heavy colors at the end of the eyes, or to draw some dark colors into eyeliner.

  

  Contour brush

  

  This brush is bigger than the base brush. It can be used after painting the whole eye shadow, without any powder. It just sweeps the edge of eye makeup to make the color more natural without obvious edge feeling, and it can also be used to sweep the nose shadow.

  

  Eye shadow color

  

  If it is not necessary for special occasions, it is best not to use too many colors in an eye makeup.

  

  The background color means that the color of a large area of eye socket must be matte, not necessarily light, but it is best to be matte without flashing, which will make the whole eye feel less swollen.

  

  The color superimposed on the background color is called the theme color. You can choose a brighter color, and the smudge range is less than the background color. How to say this range? You need to practice more. If you are a girl with double eyelids, you should control it around two or three millimeters. The color that is aggravated in the triangle area at the end of the eye is called the finishing touch color ~ when sweeping the end of the eye, bring a little to the lower eyelid part of the end of the eye to make the eyes deeper.

  

  Finally, brighten the color, with sequins or flashing colors, embellish the eyes, eyes and lower eyelids, which can make the eyes more stereoscopic and deep ~

What Are the Methods to Prevent Loosening of Anti-loosening Nuts

  Anti-loosening nut is a nut, which is a part that is screwed together with a bolt or a screw for tightening. It is an original part required by all production and processing equipment. Anti-loosening non standard nut is a part that tightly connects mechanical equipment together. With the help of the inner thread, anti-loosening nuts and screws of the same specifications can be connected together. The following is a detailed introduction to several methods of preventing anti-loosening nuts from slipping.The above conclusions show that non-standard fasteners price To a great extent, it can bring new vitality to the market and make the industry develop well. https://jieruifasteners.com/

  

  1. Anti-loosening of equipment

  

  It is to use the locking nut stopper to directly limit the relative rotation of the locking nut pair. For example, the use of tooth pins, serial wires and stop washers. Because the locking nut stopper does not have a pre-tightening force, the anti-loosening stopper can only work when the locking nut is loose and returned to the stop position. Therefore, the locking nut method does not actually prevent loosening but prevents falling.

  

  2. Riveting and anti-loosening

  

  After tightening, use punching, welding, bonding and other methods to make the locking nut pair lose the performance of the kinematic pair and the connection becomes an irremovable connection. The disadvantage of this method is that the bolt rod can only be used once, and it is very difficult to disassemble, and the bolt pair needs to be damaged before it can be disassembled.

  

  3. Friction anti-loosening

  

  It is the most widely used anti-loosening method. This method forms a positive pressure between the locking nut pairs that does not change with the external force, so as to form a friction force that can prevent the relative rotation of the locking nut pairs. This positive pressure can be achieved by axially or simultaneously pressing the locking nut pairs in two directions. For example, elastic washers, double nuts, self-locking nuts and insert locking nuts are used.

  

  

  4. Structural anti-loosening

  

  It is to apply the locking nut pair’s own structure, that is, the Tang’s locking nut anti-loosening method.

  

  

  5. Punching edge anti-loosening

  

  After the nut is tightened, the thread is destroyed by punching the end of the thread; bonding anti-loosening generally uses anaerobic adhesive to apply to the thread screw surface. After tightening the anti-loosening nut, the adhesive can solidify by itself, and the actual anti-loosening effect is better. The disadvantage of this method is that the bolt rod can only be used once, and it is very difficult to disassemble, and the bolt pair needs to be destroyed before it can be disassembled.