LinkX cable based on 100G-PAM4 technology

  LinkX Cable is focused on accelerating data center and artificial intelligence computing systems that not only deliver high data transfer rates, but are also designed to specifically optimize low latency performance to meet the high speed and efficiency requirements of modern computing systems.In the past ten years, 400g qsfp-dd Defeated many competitors, courageously advanced in the struggle, and polished many good products for customers. https://www.3coptics.com/

  

  >. Main features and technical specifications

  

  1. transmission distance and rate:

  

  Data center applications: Support transmission distances up to 2 km, usually within 50 meters.

  

  2. Data transmission rate:

  

  800Gb/s Connected to the switch.

  

  400Gb/s is connected to the network adapter and DPU (data processing unit).

  

  linkx cable

  

  >. Low latency and high bandwidth

  

  Low latency: With 100G-PAM4 technology, LinkX cables can still maintain ultra-low latency when transferring large amounts of data, providing a solid guarantee for real-time analysis and decision making.

  

  High bandwidth: Supports high bandwidth applications to meet the requirements of high-speed data transmission.

  

  Low Bit Error Rate (BER) : Optimize design and testing to achieve the lowest bit error rate for low-latency, high-bandwidth applications.

  

  Direct connection: Cross-fiber connects the two transceivers directly, reducing latency along the data transmission path. LinkX products can be seamlessly integrated into Nvidia Quantum InfiniBand and Spectral Ethernet network switches, ConnectX PCIe network adapters, and BlueField PCIe Dpus, creating an efficient and collaborative AI-accelerated ecosystem.

  

  linkx cable

  

  >. Unique advantages of artificial Intelligence AI-accelerated networks

  

  In terms of accelerating AI computing, Nvidia’s networking technology shows significant advantages:

  

  1. Focus on ultra-high data rates and low latency: The product focuses on a small number of components optimized for high data rates and low latency, unlike the complex configuration of hundreds of different components in the traditional IEEE Ethernet cable and transceiver product line.

  

  2. Integrated design and testing: These components are not only designed and manufactured, but also rigorously tested to ensure that they operate optimally in an end-to-end configuration.

  

  >. Selection of InfiniBand cable and optical module

  

  When selecting an InfiniBand cable and optical module, you need to consider the buffer delay requirements of the switch, optical module performance, and optical fiber delay. This combined consideration helps minimize latency in high-speed systems, which is a key factor in AI-accelerated systems.

Discover the Convenience and Flavor of Vapanda Disposable Vapes

  Without exception, Vapanda disposable vape Our customers are willing to purchase their products, because high quality is the concept of their products. https://vapandaclub.com/

  In the ever-evolving world of vaping, disposable vapes have become increasingly popular due to their convenience, portability, and variety of flavors. Among the many brands available, Vapanda Disposable Vapes stand out as a top choice for both beginners and experienced vapers alike. Let’s explore the features, benefits, and unique flavors that make Vapanda Disposable Vapes a must-try option.

  

  Convenience at Your Fingertips

  

  One of the main reasons vapers choose disposable vapes is the sheer convenience they offer. Vapanda Disposable Vapes are designed for easy use, eliminating the need for charging, refilling, or maintaining the device. Simply open the package, start vaping, and dispose of the device when it¨s done. This hassle-free experience makes Vapanda Disposable Vapes perfect for on-the-go use, whether you¨re traveling, at a social event, or simply running errands.

  

  Compact and Portable

  

  Vapanda Disposable Vapes are incredibly compact and lightweight, making them easy to carry in your pocket, purse, or backpack. Their sleek design ensures that they can be discreetly used without drawing unwanted attention. Despite their small size, these devices are packed with enough battery life and e-liquid to last through multiple sessions, providing a satisfying vaping experience wherever you are.

  

  Wide Variety of Flavors

  

  One of the most appealing aspects of Vapanda Disposable Vapes is the extensive range of flavors available. From classic tobacco and menthol to exotic fruit blends and dessert-inspired options, there¨s something to suit every palate. Each flavor is crafted with high-quality ingredients to deliver a smooth and enjoyable vaping experience. Whether you prefer the bold taste of traditional tobacco or the refreshing burst of tropical fruits, Vapanda has you covered.

  

  High-Quality Ingredients

  

  Vapanda takes pride in using only the finest ingredients in their disposable vapes. The e-liquids are made from high-grade nicotine salts, which provide a smoother throat hit and faster nicotine absorption compared to traditional e-liquids. Additionally, the flavors are meticulously crafted to ensure consistency and satisfaction with every puff.

  

  Affordable and Accessible

  

  Vapanda Disposable Vapes offer an affordable entry point into the world of vaping. Their competitive pricing makes them accessible to a wide range of consumers, from those looking to try vaping for the first time to seasoned vapers seeking a convenient alternative. The cost-effectiveness of disposable vapes means you can explore different flavors without breaking the bank.

  

  Environmentally Conscious

  

  While disposable vapes are designed for single use, Vapanda is committed to minimizing their environmental impact. The company encourages users to dispose of their vapes responsibly and offers information on proper disposal methods. Additionally, Vapanda is continuously exploring sustainable practices and materials to enhance their products¨ eco-friendliness.

  

  Perfect for Transitioning Smokers

  

  For those looking to make the switch from traditional cigarettes to vaping, Vapanda Disposable Vapes offer a seamless transition. The ease of use, familiar form factor, and satisfying nicotine delivery make it easier for smokers to adopt vaping. The variety of flavors also helps users find enjoyable alternatives to their usual cigarette brands, making the switch more appealing.

  

  Conclusion

  

  Vapanda Disposable Vapes provide a convenient, flavorful, and affordable vaping solution for users of all experience levels. Their compact design, wide range of flavors, and high-quality ingredients make them a standout choice in the disposable vape market. Whether you¨re new to vaping or a seasoned enthusiast, Vapanda Disposable Vapes offer an enjoyable and hassle-free experience that¨s hard to beat. So why wait? Discover the convenience and flavor of Vapanda Disposable Vapes today and elevate your vaping journey.

How to maintain a memory foam pillow

  Every item in life needs careful maintenance, and your pillow is no exception. Let’s take a look at the maintenance methods of memory foam pillows with Xiao Shi!In addition to innate advantages, memory foam pillow Its own product attributes are also extremely high-end, in order to remain unbeaten in the market competition. https://tainengjikang.com/

  

  How to maintain a memory foam pillow?

  

  1. Pillowcase

  

  Memory pillows usually have outer and inner covers. The inner cover is mostly made of pure cotton fabric, while the outer cover is generally made of velvet fabric. The inner cover can be machine washed or hand washed, and can be dried after being wrung out. It is generally recommended to hand wash the velvet outer cover, and do not wring it too hard when drying. When installing the pillow core, pay attention to the direction of the big and small heads. Most memory pillows are now B-shaped, which cannot be cut open and installed upside down.

  

  2. Pillow Core

  

  (1) Memory pillows are generally made of environmentally friendly polyurethane. This material will turn yellow if left in the sun for a long time, so the pillow core should not be exposed to the sun. Just take it out frequently to ventilate and dry naturally.

  

  (2) Another thing to pay attention to when maintaining the pillow core is that you should not press it with force for a long time. When not in use, leave it in its natural state and do not place it under heavy objects for a long time. This may cause the memory foam to deform, making you uncomfortable when sleeping.

  

  (3) The pillow core cannot be washed. This type of memory foam has a very unique structure. If moisture enters, it will be difficult to clean out, which will also reduce the quality of sleep. Generally, it is used with a pillowcase and an inner cover. If you accidentally sweat, take out the pillow core and let it dry naturally.

  

  Finally, if the newly purchased memory foam pillow has a slight odor, it is normal. Just let it air dry for 3-5 days (if the ventilation is good, the odor can be removed in 2 days), and the odor will be completely gone, and you can use it with confidence.

SISHUN TOUMBRELLA ISO 9001&ISO 14001

  SISHUN TOPUMBRELLA has successfully obtained ISO 9001 and ISO 14001 certifications,To get brand praise, carbon fibre umbrella 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://topumbrella.cc/

  

  marking our continued commitment to quality and environmental responsibility. These

  

  certifications are a testament to our unwavering dedication to delivering exceptional

  

  products while prioritizing sustainability in every step of our production process.

  

  ISO 9001 reflects our dedication to maintaining the highest standards of quality

  

  management, ensuring that our products not only meet but also exceed our customers¨

  

  expectations. This achievement underscores our relentless pursuit of excellence and our

  

  ongoing efforts to enhance customer satisfaction through innovation and continuous improvement.

  

  ISO 14001 certification reinforces our pledge to environmentally responsible practices,

  

  from sustainable sourcing of materials to reducing our carbon footprint throughout the

  

  manufacturing process. At SISHUN TOOUMBRELLA, we are committed to leading by

  

  example in the industry, ensuring that our operations contribute positively to the environment

  

  while providing high-quality products to our global customers.

E Vape Electronic Cigarette A Comprehensive Guide to Modern Vaping

  The vaping industry has evolved significantly over the past decade, offering a wide range of devices and products designed to cater to different preferences and needs. Among these innovations, the e vape electronic cigarette stands out as a popular choice for both beginners and experienced vapers. In this comprehensive guide, we will explore the benefits, features, and advancements of e vape electronic cigarettes, helping you understand why they have become a preferred alternative to traditional smoking.More importantly, put Vapanda disposable vape It is imperative for us to make thorough analysis and maximize its social function. https://vapandaclub.com/

  

  What is an E Vape Electronic Cigarette?

  

  An e vape electronic cigarette, commonly known as an e-cig or vape pen, is a battery-powered device that heats a liquid (e-liquid or vape juice) to create vapor, which the user inhales. Unlike traditional cigarettes, e-cigs do not burn tobacco. Instead, they use e-liquids that can contain nicotine, flavorings, and other ingredients. This process eliminates the harmful combustion products associated with smoking.

  

  Benefits of E Vape Electronic Cigarettes

  

  1.Healthier Alternative to Smoking

  

  E vape electronic cigarettes are considered a less harmful alternative to smoking. They do not produce tar or many of the harmful chemicals found in traditional cigarettes. Many users switch to vaping to reduce their exposure to these harmful substances.

  

  2.Variety of Flavors

  

  One of the appealing aspects of e-cigarettes is the vast array of flavors available. From classic tobacco and menthol to fruity and dessert-inspired flavors, there is an option for every taste preference. This variety can make the transition from smoking to vaping more enjoyable.

  

  3.Adjustable Nicotine Levels

  

  E-liquids come in various nicotine strengths, allowing users to choose the level that suits their needs. This flexibility can be particularly helpful for those looking to gradually reduce their nicotine intake and eventually quit altogether.

  

  4.Cost-Effective

  

  While the initial investment in a high-quality e vape electronic cigarette may be higher than buying a pack of cigarettes, the long-term cost is generally lower. E-liquids and replacement parts are typically less expensive than continually purchasing cigarettes.

  

  5.Odor-Free Experience

  

  Vaping produces a vapor that dissipates quickly and leaves minimal odor compared to the lingering smell of cigarette smoke. This makes e-cigs more socially acceptable and reduces the impact on non-smokers around you.

  

  Features of Modern E Vape Electronic Cigarettes

  

  1.Compact and Portable Design

  

  Modern e-cigarettes are designed to be sleek, compact, and easy to carry. Their portability makes them a convenient option for on-the-go vaping.

  

  2.Rechargeable Batteries

  

  Most e vape electronic cigarettes come with rechargeable batteries, which can be charged via USB. This feature ensures that your device is always ready for use and eliminates the need for constant battery replacements.

  

  3.User-Friendly Interface

  

  Many e-cigs feature simple, user-friendly interfaces with one-button operation or draw-activated mechanisms. This ease of use makes them accessible to beginners and experienced vapers alike.

  

  4.Customizable Settings

  

  Advanced e-cigarettes offer customizable settings, such as adjustable wattage and temperature control. These features allow users to fine-tune their vaping experience to their preferences.

  

  Advancements in Vaping Technology

  

  1.Pod Systems

  

  Pod systems are a recent innovation in the vaping industry. They use pre-filled or refillable pods instead of traditional tanks, offering a more streamlined and user-friendly experience. Pod systems are known for their convenience and ease of use.

  

  2.Nicotine Salts

  

  Nicotine salts are a newer form of nicotine used in e-liquids. They provide a smoother throat hit and faster nicotine absorption, making them a popular choice for those looking for a more satisfying vaping experience.

  

  3.Temperature Control

  

  Temperature control technology allows users to set a specific temperature for their device, preventing dry hits and ensuring consistent vapor production. This feature enhances the overall vaping experience.

  

  Conclusion

  

  E vape electronic cigarettes offer a modern, healthier alternative to traditional smoking, with numerous benefits and features that cater to a wide range of preferences. From the variety of flavors and adjustable nicotine levels to the advancements in vaping technology, e-cigs provide a customizable and enjoyable experience for users. Whether you’re looking to quit smoking or explore the world of vaping, e vape electronic cigarettes are a versatile and appealing option.

Choosing the Right Supplier

  When selecting a car camera supplier, it¨s essential to consider their expertise in OEM manufacturing and the range of features they offer. Look for suppliers that provide detailed product specifications, robust quality control, and comprehensive customer support.In the past ten years, 360 panoramic camera factory Defeated many competitors, courageously advanced in the struggle, and polished many good products for customers. https://szdfpls.com

  

  Leading manufacturers like those featured on platforms such as szdfpls.com offer high-quality car cameras designed to meet rigorous standards. By choosing a reputable supplier, you ensure that you receive a product that not only enhances your vehicle¨s safety but also stands the test of time.

  

  Conclusion

  

  OEM car cameras, including waterproof models and car handle cameras, are essential for modern vehicles, offering superior image quality, versatile functionality, and robust durability. By investing in high-quality cameras from reliable suppliers, you can enhance your driving experience with advanced safety features and superior performance. Whether for daily use or specialty applications, these cameras provide the clarity and reliability needed for effective vehicle monitoring.

How to Choose the Perfect Memory Foam Travel Pillow for Your Next Trip

  Traveling can be exhilarating, but long journeys often come with discomfort, especially when it comes to sleep. A quality memory foam travel pillow can make all the difference, providing support and comfort during flights, road trips, or even train rides. However, choosing the right one involves considering several factors to ensure it meets your specific needs. Here¨s a guide to help you choose the perfect memory foam travel pillow for your next trip.according to memory foam pillow Industry veterans said that its development will still be in a good situation. https://tainengjikang.com/

  

  How to Choose the Perfect Memory Foam Travel Pillow for Your Next Trip

  

  JK796

  

  1. Consider Your Sleeping Style

  

  The first step in choosing a memory foam travel pillow is to consider your sleeping style. Do you usually sleep with your head tilted to one side? Do you prefer sleeping upright or leaning forward? Understanding your typical sleeping position will help you choose a pillow that provides adequate support and aligns your neck and spine properly.

  

  2. Neck Support and Comfort

  

  One of the primary benefits of a memory foam travel pillow is its ability to contour to the shape of your neck and head, providing personalized support. Look for a pillow with medium to firm density memory foam, as this will offer the best balance of comfort and support. The pillow should maintain its shape and provide consistent support throughout your journey.

  

  3. Size and Portability

  

  The size and portability of the travel pillow are crucial factors, especially if you have limited space in your carry-on luggage or backpack. Opt for a pillow that is compact and lightweight yet offers sufficient support. Many memory foam travel pillows come with compression bags or travel cases that make them easier to carry and store when not in use.

  

  4. Material and Breathability

  

  Check the material used in the pillow cover and the breathability of the memory foam itself. A breathable cover helps regulate temperature and keeps you cool during warm journeys. Some pillows feature moisture-wicking properties to prevent sweat buildup, enhancing comfort, especially on long flights or in humid conditions.

  

  5. Adjustability and Versatility

  

  Consider whether you prefer a traditional U-shaped pillow or a more versatile design that can be adjusted to different sleeping positions. Some memory foam travel pillows offer adjustable straps or toggles that allow you to customize the fit around your neck. This adjustability ensures maximum comfort and support, regardless of how you prefer to sleep.

  

  6. Ease of Maintenance

  

  Travel pillows can accumulate dirt and odor over time, so choose one that is easy to clean. Look for pillows with removable and washable covers, or those that can be spot-cleaned with ease. This feature not only helps maintain hygiene but also prolongs the lifespan of your travel pillow.

  

  7. Durability and Longevity

  

  Invest in a travel pillow that is durable and built to last. Quality memory foam retains its shape and resilience over time, ensuring that your pillow continues to provide optimal support through multiple trips. Check customer reviews and product specifications to gauge the durability of the pillow before making a purchase.

  

  8. Reviews and Recommendations

  

  Before finalizing your decision, read reviews and recommendations from other travelers who have used the pillow. Honest feedback can provide valuable insights into the pillow¨s comfort, support, and overall performance during real-world use. Look for pillows with high ratings and positive reviews to ensure satisfaction.

  

  9. Budget Considerations

  

  While quality should be your priority, consider your budget when choosing a memory foam travel pillow. There are options available across different price ranges, so you can find a pillow that meets your needs without breaking the bank. Compare features and prices to make an informed decision that aligns with your budget.

  

  10. Trial Period and Return Policy

  

  If possible, choose a memory foam travel pillow that comes with a trial period or a generous return policy. This allows you to test the pillow and determine if it suits your comfort preferences before committing to it for your travels. A satisfaction guarantee ensures peace of mind and helps you make a confident purchase decision.

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.In order to achieve the goal, Non standard hardware factory Turn cocoon into butterfly, constantly polish product quality, improve business ability, and finally have a place in the market. 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).

How to choosing an umbrella that suits you

  Choosing the right umbrella can be surprisingly complex. With a plethora of styles, materials, and features available, selecting an umbrella that perfectly suits your needs requires some thought. Here¨s a comprehensive guide to help you make the best choice.Doing these simple things can also make straight umbrella Sowing high-quality genes will eventually grow into towering trees and become the leader in the industry. https://topumbrella.cc/

  

  choosing umbrella

  

  Understanding Umbrella Types

  

  1. Compact Umbrellas: These are small and foldable, designed for convenience. They can easily fit into a handbag or backpack, making them ideal for daily commuting and unexpected rain showers.

  

  2. Stick Umbrellas: Known for their sturdiness, stick umbrellas have a classic, elegant design with a long, straight handle. They are often more durable than compact umbrellas and provide better wind resistance.

  

  3. Golf Umbrellas: Large and robust, golf umbrellas offer extensive coverage and are designed to protect both you and your gear from rain. They are perfect for outdoor activities and sports events.

  

  4. Automatic Umbrellas: These feature a mechanism that allows you to open and close the umbrella with the press of a button. They combine convenience with ease of use, making them a popular choice for many.

  

  5. Bubble Umbrellas: With a dome-shaped canopy, bubble umbrellas provide excellent wind protection and coverage, keeping you dry even in blustery conditions. They also offer great visibility due to their clear plastic material.

  

  choosing umbrella

  

  Key Features to Consider

  

  When choosing an umbrella, consider the following features to ensure it meets your needs:

  

  1. Size and Coverage: The size of the canopy determines the coverage. A larger canopy offers better protection but may be bulkier to carry. Decide based on your typical usage scenarios.

  

  2. Material and Durability: Look for canopies made from durable materials like polyester or nylon. The frame should be sturdy, preferably made of fiberglass or reinforced steel, to withstand strong winds.

  

  3. Wind Resistance: Windproof umbrellas are designed to resist inversion in strong gusts. Look for features like double canopies or vents that allow wind to pass through, reducing the risk of the umbrella flipping inside out.

  

  4. Portability: If you need an umbrella for travel or daily commuting, a lightweight, compact design is essential. Check the folded length and weight to ensure it fits your requirements.

  

  5. Ease of Use: Automatic umbrellas offer quick and easy operation, which can be a lifesaver during sudden downpours. Test the mechanism to ensure it¨s smooth and reliable.

  

  6. Handle Comfort: The handle should provide a comfortable grip. Options include ergonomic designs, rubberized coatings, and even wooden handles for a touch of classic elegance.

The structure of the membrane switch tells you quietly

  Membrane switch, also known as touch keyboard, adopts an overall sealed structure composed of multiple layers of planes. It is a new type of electronic component that integrates optics, machinery and electricity, sealing the key switch, panel, mark, symbol display and lining together. Next, we will explain the structure of membrane switch to you.contemporaneity silicone rubber keyboard Our competitors have not made large-scale improvements, so we should get ahead of everyone in the project. https://singway-touch.com/

  

  membrane switch structure

  

  1. Panel layer

  

  The panel layer is generally a colorless and light-transmitting sheet of less than 0.25MM such as PET and PC with exquisite patterns and texts printed on it. Because the main function of the panel layer is to play the role of marking and button, the selected material must have high transparency. , high ink adhesion, high elasticity, high toughness and other characteristics.

  

  2. Surface adhesive layer

  

  The main function of the surface adhesive is to tightly connect the panel layer and the circuit layer to achieve a sealed connection. This layer is generally required to be between 0.05-0.15MM thick and have high viscosity and anti-aging properties; special membrane switch double-sided adhesive is generally used in production. Some membrane switches need to be waterproof and high temperature resistant. Therefore, the surface adhesive must also use materials with different properties according to needs.

  

  3. Upper and lower layers of the control circuit

  

  This layer uses high-performance polyester film (PET) as the carrier of the switch circuit pattern, and uses a special process to screen-print conductive silver paste and conductive carbon paste on it to make it conductive. Its thickness is generally within 0.05-0.175MM, and the most common is 0.125MMPET.

  

  4. Interlayer

  

  It is located between the upper circuit and the lower circuit layer, and plays a role in sealing and connecting. Generally, PET double-sided tape is used, and its thickness ranges from 0.05 to 0.2MM; when selecting the material of this layer, the integrity of the product should be fully considered. Thickness, insulation, circuit key package feel and sealing.

  

  5. Adhesive layer

  

  The use of adhesive is closely related to the material to which the membrane switch is attached. Commonly used ones include double-sided adhesive, 3M adhesive, waterproof adhesive, etc.