What Services Can FREE SEA Provide

  We offer sea freight, air freight, railway freight, express delivery, truck transportation, and small package transportation.Now, everyone is right freight forwarder china to usa Are more concerned, hoping to get more benefits from it. https://www.freeseaship.com/

  

  Our services include quality testing, factory inspection, sampling inspection, inspection reports, pick-up, warehouse receipt, labeling as required, inspection as required, customs declaration, destination unloading, customs clearance, pallets (if required), shipment, appointment, and delivery.

  

  In addition, we also have warehouses in the United States, Canada and other places, supporting simple maintenance, returns and exchanges, after-sales service, overseas warehousing, and direct shipping services.

Power Your Adventures with the Packsico 3000W3108Wh Portable Power Station

  In the quest for reliable and efficient portable power solutions, the Packsico 3000W/3108Wh Portable Power Station stands out as a top contender. This powerhouse of a device is designed to meet the diverse energy needs of modern users, from outdoor enthusiasts to emergency preparedness experts. In this blog post, we¨ll explore the features, benefits, and practical applications of the Packsico 3000W/3108Wh Portable Power Station, demonstrating why it¨s an essential tool for anyone in need of portable power.The above conclusions show that 1000W portable power station To a great extent, it can bring new vitality to the market and make the industry develop well. https://www.packsico.com/

  

  Why Choose the Packsico 3000W/3108Wh Portable Power Station?

  

  High Power Output

  

  With a robust 3000W output and a 3108Wh capacity, the packsico portable power station can handle a wide range of devices and appliances. Whether you¨re powering a campsite, running household appliances during a blackout, or supporting remote work setups, this power station delivers consistent and reliable energy.

  

  Long-Lasting Battery Life

  

  Equipped with a high-capacity lithium battery, the Packsico power station offers extended battery life, ensuring you have power when you need it most. Its impressive 3108Wh capacity allows for prolonged use, making it perfect for long trips and extended outages.

  

  Versatile Charging Options

  

  The Packsico 3000W/3108Wh Portable Power Station features multiple charging ports, including AC outlets, USB ports, and DC outputs. This versatility allows you to charge everything from smartphones and laptops to power tools and kitchen appliances. It also supports solar panel charging, promoting eco-friendly energy use.

  

  Compact and Portable Design

  

  Despite its powerful capabilities, the Packsico power station is designed to be compact and portable. Its sturdy build and convenient carrying handle make it easy to transport, so you can take reliable power with you wherever you go.

  

  Practical Applications of the Packsico 3000W/3108Wh Portable Power Station

  

  Outdoor Adventures

  

  For campers, hikers, and outdoor enthusiasts, the Packsico power station is a game-changer. It provides ample power to keep your devices charged, run portable fridges, and even power electric grills, enhancing your outdoor experience with the comforts of home.

  

  Emergency Preparedness

  

  In emergencies, having a dependable power source is crucial. The Packsico power station ensures you¨re prepared for power outages, natural disasters, and other emergencies. Keep essential devices like medical equipment, communication tools, and lights powered up when you need them most.

  

  Remote Work and Travel

  

  As remote work continues to rise, having a reliable power source on the go is essential. The Packsico power station supports remote work by providing a stable power supply for laptops, monitors, and other office equipment. It¨s perfect for digital nomads and remote workers who need to stay productive wherever they are.

  

  Conclusion

  

  The Packsico 3000W/3108Wh Portable Power Station is a versatile, powerful, and reliable solution for all your portable power needs. Its high power output, long-lasting battery, versatile charging options, and compact design make it an ideal choice for outdoor adventures, emergency preparedness, and remote work.

  

  Invest in the Packsico 3000W/3108Wh Portable Power Station today and experience the freedom of reliable, portable power. Whether you¨re exploring the great outdoors, preparing for emergencies, or working remotely, this power station ensures you have the energy you need, whenever and wherever you need it.

Professional umbrella manufacturer – Sishun Umbrella

¡¡¡¡Walking on the street, people are passing by gracefully or striding, and the carefully crafted advertising slogans on red, yellow and blue professional umbrella are also moving forward: ¡°Confucius Mansion Banquet Wine is mellow and crispy¡±, ¡°A taste of Huangshan is high and cloudless¡±, ¡°Green Card accompanies you around the world¡±¡­ This flowing scenery is no worse than the TV screen. It is so gentle that passers-by can easily remember the products, the manufacturers, and the many benefits of the products. Therefore, umbrellas promote economic development. Isn¡¯t this the ¡°market love¡± of umbrellas?In the industry, straight umbrella Has been a leader in the industry, but later came from behind but never arrogant, low-key to adhere to quality. https://topumbrella.cc/

¡¡¡¡

¡¡¡¡professional umbrella

¡¡¡¡

¡¡¡¡Prediction

¡¡¡¡

¡¡¡¡According to legend, professional umbrella can also predict a person¡¯s luck. If an umbrella falls on the ground, do not pick it up yourself, otherwise bad luck will come. If you open it on a sunny day, it will be a bad omen. Do not open it indoors. It is best to open it indoors.

¡¡¡¡

¡¡¡¡Code words

¡¡¡¡

¡¡¡¡The UK began using umbrellas only in the 18th century. The Bernas umbrella was once a special item for women, which expressed women¡¯s attitude towards love. Holding the umbrella upright means being faithful to love; holding the open umbrella in the left hand means holding the umbrella tightly. Slowly shaking the umbrella means lack of confidence or distrust; leaning the umbrella on the right shoulder means not wanting to see you again.

¡¡¡¡

¡¡¡¡Social significance

¡¡¡¡

¡¡¡¡In ancient China, umbrellas symbolized power for emperors, generals, and dignitaries, as clearly recorded in the ¡°Book of Jin¡± and ¡°Yufuzhi¡± in Zuo Zhuan. The records show a strict hierarchy associated with their use. The materials, colors, and sizes of umbrellas are like the black gauze on the head and the court dress on the body, which also distinguish the official positions. For example, in the Han Dynasty, it was stipulated that the nine ministers and three officials who ate more than 2,000 stones of millet used black. The officials who were not allowed to wear black clothes were all allowed to wear blue. Therefore, in ancient times, the sedan chairs or cars that the emperors or high officials rode on when they went on tours all had umbrella covers to show that they ¡°shaded the people.¡± Therefore, this kind of umbrella is also called ¡°cool umbrella¡±, ¡°Luo umbrella¡±, ¡°all people¡¯s umbrella¡±, and ¡°Huagai¡± in written language.

¡¡¡¡

¡¡¡¡professional umbrella

¡¡¡¡

¡¡¡¡Two-fold umbrellas

¡¡¡¡

¡¡¡¡T151 Bronze Chariot and Horses in the Mausoleum of Qin Shihuang, and the ¡°Huagai¡± in T131 A Thousand Miles Alone, are both symbols of the identity of the umbrella user. The most magnificent and fully expressed use of umbrellas in ceremonials may be the ¡°Ming People Going Out on Police and Entering the Imperial Court¡± issued by Taiwan Province. Two five-piece sheets also have partial enlarged pictures. In the second stamp of the imperial court, there are five ¡°Luo umbrellas¡± in red, green, yellow, blue and white, which are colorful. In the third and fifth stamps of the ¡°Police Outing¡±, there are some symmetrical left and right temporarily closed and carried on the shoulders, and some are open in the middle and marching, which are bustling and magnificent. Because umbrellas symbolize wealth and honor, there is also a custom of holding umbrellas in folk weddings in the East. This is vividly depicted in the folk wedding stamps issued in Macau and North Korea.

¡¡¡¡

¡¡¡¡The umbrella is not only a decoration for government ceremonies, but also a common prop in opera, singing and dancing, and acrobatics. The first stamp of the ¡°Legend of the White Snake¡± issued by Taiwan Province in 1983 reflects the scene of ¡°borrowing an umbrella from West Lake¡±, which is this umbrella. The imperial court also used umbrellas as props. Many Chinese and foreign stamps reflect national folk art that features umbrellas as central props.

What are the ocean freight surcharges What to do if you miss report them

  In the process of international express delivery, in addition to the basic freight, there are often various additional fees involved.Industry experts have said that, freight forwarder It is very possible to develop and expand, which can be well seen from its previous data reports. https://www.freeseaship.com/

  

  Although these fees may seem insignificant, if you don’t understand them clearly in advance, it is easy to encounter “unexpected” expenses during the delivery process, which is a headache.

  

  ocean freight surcharges

  

  Therefore, before sending international express, it is particularly important to understand the types and causes of these additional fees. This article will explain in detail the common surcharges in international express, helping you to easily avoid the embarrassment of “stepping on thunder”.

  

  Surcharges

  

  First of all, we need to understand what surcharges are? Will there be any? Who will collect them? These are basic questions.

  

  Surcharges refer to additional fees that need to be paid for additional matters or specific services on the basis of the original main fees, which are officially stipulated and collected by international express delivery.

  

  Of course, surcharges are not incurred on all routes, nor are they imposed for every mailing. Surcharges are only charged if certain restrictions are met on a certain mailing route.

  

  ocean freight surcharges

  

  Common surcharges

  

  1. Warehouse queuing fee

  

  If there are too many goods and too few aircraft spaces, you need to book the space in advance. The warehouse queuing fee is the storage fee incurred when the package is waiting to be boarded.

  

  2. Overweight and overlength fees

  

  For a single package, if the weight or single/double/circumference exceeds a certain limit, some express routes will charge an overweight and overlength fee for each express shipment.

  

  3. Remoteness Fee

  

  When the destination or pickup location is in a remote area, some express routes will charge a remoteness fee for each express shipment.

  

  Remote areas refer to islands and plateaus; or areas where postal services are not available; or suburbs/towns that are remote, inconvenient to transport, and have fewer services.

  

  4. Fuel fee

  

  Fuel fee is an additional fee added to the remoteness fee or over-length and overweight fee. It is generally not charged separately and is also charged by the airline.

  

  ocean freight surcharges

  

  5. Live-charge fee

  

  When the parcel contains live-charged items, some express routes will charge a live-charge fee for each shipment.

  

  For example, DHL charges a live-charge fee of RMB 30 for each shipment containing live-charged items.

  

  6. Peak Season Surcharge

  

  During the epidemic, passenger and cargo airlines have limited export cargo capacity. As domestic demand for export capacity has also grown rapidly.

  

  Airlines charge temporary route adjustment fees for export cargo to control cargo volume and maintain a balance of capacity.

  

  7. Delivery fee

  

  Generally there are two types of delivery fees:

  

  1. If the customer’s address is in a remote area, a remote fee + fuel fee will be charged

  

  2. Fees incurred for repeated delivery on some routes or delivery with a changed address

  

  How to avoid pitfalls

  

  There are many types of surcharges in international express delivery. The sender must understand the reasons and charging standards for each fee before sending the express.

  

  Before placing an order, you must understand whether the items and routes you are sending include surcharges, so that you can avoid pitfalls as much as possible.

  

  At the same time, it is also recommended that senders pay attention to the service quality and after-sales guarantee when choosing a courier company in addition to considering the price factor, so as to ensure that their rights and interests are fully protected.

Power Your Adventures with the Packsico 3000W3108Wh Portable Power Station

  In the quest for reliable and efficient portable power solutions, the Packsico 3000W/3108Wh Portable Power Station stands out as a top contender. This powerhouse of a device is designed to meet the diverse energy needs of modern users, from outdoor enthusiasts to emergency preparedness experts. In this blog post, we¨ll explore the features, benefits, and practical applications of the Packsico 3000W/3108Wh Portable Power Station, demonstrating why it¨s an essential tool for anyone in need of portable power.In addition to these aspects, 1000W portable power station The performance in other aspects is also relatively good, which has attracted everyone’s attention and research. https://www.packsico.com/

  

  Why Choose the Packsico 3000W/3108Wh Portable Power Station?

  

  High Power Output

  

  With a robust 3000W output and a 3108Wh capacity, the packsico portable power station can handle a wide range of devices and appliances. Whether you¨re powering a campsite, running household appliances during a blackout, or supporting remote work setups, this power station delivers consistent and reliable energy.

  

  Long-Lasting Battery Life

  

  Equipped with a high-capacity lithium battery, the Packsico power station offers extended battery life, ensuring you have power when you need it most. Its impressive 3108Wh capacity allows for prolonged use, making it perfect for long trips and extended outages.

  

  Versatile Charging Options

  

  The Packsico 3000W/3108Wh Portable Power Station features multiple charging ports, including AC outlets, USB ports, and DC outputs. This versatility allows you to charge everything from smartphones and laptops to power tools and kitchen appliances. It also supports solar panel charging, promoting eco-friendly energy use.

  

  Compact and Portable Design

  

  Despite its powerful capabilities, the Packsico power station is designed to be compact and portable. Its sturdy build and convenient carrying handle make it easy to transport, so you can take reliable power with you wherever you go.

  

  Practical Applications of the Packsico 3000W/3108Wh Portable Power Station

  

  Outdoor Adventures

  

  For campers, hikers, and outdoor enthusiasts, the Packsico power station is a game-changer. It provides ample power to keep your devices charged, run portable fridges, and even power electric grills, enhancing your outdoor experience with the comforts of home.

  

  Emergency Preparedness

  

  In emergencies, having a dependable power source is crucial. The Packsico power station ensures you¨re prepared for power outages, natural disasters, and other emergencies. Keep essential devices like medical equipment, communication tools, and lights powered up when you need them most.

  

  Remote Work and Travel

  

  As remote work continues to rise, having a reliable power source on the go is essential. The Packsico power station supports remote work by providing a stable power supply for laptops, monitors, and other office equipment. It¨s perfect for digital nomads and remote workers who need to stay productive wherever they are.

  

  Conclusion

  

  The Packsico 3000W/3108Wh Portable Power Station is a versatile, powerful, and reliable solution for all your portable power needs. Its high power output, long-lasting battery, versatile charging options, and compact design make it an ideal choice for outdoor adventures, emergency preparedness, and remote work.

  

  Invest in the Packsico 3000W/3108Wh Portable Power Station today and experience the freedom of reliable, portable power. Whether you¨re exploring the great outdoors, preparing for emergencies, or working remotely, this power station ensures you have the energy you need, whenever and wherever you need it.

Here are some common information about hexagonal thin nut

  Hexagonal thin nut is a type of hexagonal thin nut commonly used to tighten and connect two or more parts. Its characteristic is its thin thickness, suitable for situations with limited space. Here are some common information about hexagonal thin nuts:In the past ten years, stainless steel fasteners supplier Defeated many competitors, courageously advanced in the struggle, and polished many good products for customers. https://shwhardware.com

  

  Specifications and dimensions: The specifications and dimensions of hexagonal thin nuts are usually determined based on the thread specifications, such as M3, M4, M5, etc. In addition, there are corresponding standards for the width and height of the opposite side of the nut.

  

  nut-1 (2).pngnut-1 (3).png

  

  Materials: Common materials include carbon steel, stainless steel, copper, etc. Nuts made of different materials have different performance and applicability scenarios.

  

  Grade: The grade of hexagonal thin nuts is usually divided based on their mechanical properties and tolerance requirements. Common levels include 4.8, 8, etc.

  

  Usage: Widely used in the fields of mechanical equipment, automobiles, electronic equipment, etc., for fastening bolts, screws and other connectors to ensure the firmness and stability of the connection.

  

  Standards: The production and use of hexagonal thin nuts usually follow relevant standards, such as national standards (GB), international standards (ISO), etc. These standards specify requirements for the dimensions, tolerances, mechanical properties, etc. of nuts to ensure product quality and interchangeability.

  

  When choosing a hexagonal thin nut, the following factors need to be considered:

  

  Connection requirements: Determine the required nut grade and specification based on the material, size, and force situation of the connecting parts.

  

  Usage environment: Consider factors such as temperature, humidity, and corrosiveness in the usage environment, and choose suitable materials and surface treatment methods.

  

  Installation space: Select a hexagonal thin nut with appropriate thickness based on the size of the installation space.

  

  Standard requirements: If there are specific standard requirements, nuts that meet those standards should be selected..

What Is Air Source Heat Pump

  Air source heat pumps are a form of heating system that extracts heat from the outdoor air and utilizes it to supply heating and hot water for buildings. They serve as an energy-efficient and environmentally-friendly substitute for conventional heating systems like gas boilers or electric heaters.To get brand praise, Inverter heat pump It is necessary to have the spirit of constantly improving the quality of products, but also to have a bunch of eternal heart fire. http://mangoenergyheatpump.com

  

  How does an air source heat pump operate?

  

  Air source heat pumps function by drawing in heat from the external air at low temperatures and subsequently intensifying the heat’s temperature using a compressor. This heat is then utilized to warm water for radiators, underfloor heating systems, or for domestic hot water.

  

  There are two primary kinds of air source heat pumps: air-to-water and air-to-air. Air-to-water heat pumps convey heat to a wet central heating system, whereas air-to-air heat pumps transfer heat to warm air systems.

  

  Advantages of air source heat pumps

  

  Utilizing an air source heat pump for heating and hot water provision offers several advantages, including:

  

  1. Energy efficiency: Air source heat pumps are remarkably energy-efficient by utilizing renewable energy from the air, potentially leading to lower energy expenditures and decreased carbon emissions.

  

  2. Renewable energy: By sourcing renewable energy from the air, air source heat pumps represent a more sustainable and eco-friendly heating solution compared to traditional fossil fuel-based systems.

  

  3. Reduced carbon emissions: Through the reliance on renewable energy sources, air source heat pumps can aid in reducing carbon emissions, contributing to a more environmentally-friendly space.

  

  4. Reduced operational costs: Despite potential higher initial installation costs, air source heat pumps have lower operational costs over time, resulting in potential long-term savings.

  

  5. Versatility: Their ability to cater to both heating and hot water provision makes air source heat pumps a versatile solution for both residential and commercial structures.

  

  Considerations for installation

  

  When contemplating the installation of an air source heat pump, several key considerations must be taken into account:

  

  1. Location: Access to good airflow and appropriate outdoor space are crucial for the installation of an air source heat pump.

  

  2. Building insulation: Ensuring proper building insulation is important to optimize the heat pump’s efficiency and minimize heat loss.

  

  3. System compatibility: Compatibility with existing heating systems and hot water provision in the building is essential for the installation of an air source heat pump.

  

  4. Planning permission: Installation of an air source heat pump may necessitate planning permission based on location and building type.

  

  5. Maintenance: Ongoing maintenance, which includes filter cleaning, monitoring refrigerant levels, and inspecting outdoor units, is vital for ensuring the effective operation of an air source heat pump.

  

  In conclusion, air source heat pumps offer a sustainable and energy-efficient heating solution, catering to both residential and commercial heating and hot water needs. By harnessing renewable energy from the air, they provide a greener alternative to traditional heating systems, potentially leading to reduced energy costs and carbon emissions. It is important to consider factors such as location, building insulation, system compatibility, planning permission, and maintenance when contemplating the installation of an air source heat pump to ensure optimal performance.

What Is PSTN Alarm System

  A PSTN (Public Switched Telephone Network) alarm system is a security solution that uses traditional landline telephone networks to transmit alarm signals to a monitoring center. This type of system has been widely used in residential and commercial security due to its reliability and widespread infrastructure.In the eyes of industry experts, passive infrared sensor Indeed, it has great development potential, which makes many investors more interested. https://www.sunlit-tech.com

  

  How PSTN Alarm Systems Work

  

  A PSTN alarm system is connected to a telephone line. When an alarm is triggered, the system sends a signal through the telephone line to a monitoring center or directly to a user¨s phone. This signal alerts the designated parties of a potential security breach, enabling a quick response.

  

  GSM PSTN Alarm System

  

  Combining the reliability of PSTN with the flexibility of GSM (Global System for Mobile Communications), a GSM PSTN alarm system enhances security by providing multiple communication channels. This hybrid system uses both a traditional telephone line and a GSM network to ensure alarm signals are always transmitted, even if one network fails.

  

  

  Advantages of GSM PSTN Alarm Systems

  

  Redundancy: The dual network system ensures that alarm signals are transmitted even if one network is down.

  

  Remote Access: GSM integration allows users to control and monitor the alarm system remotely via mobile phones.

  

  Flexibility: Suitable for areas without reliable landline service as the GSM component can handle communication.

  

  Choosing the Right Alarm System

  

  When selecting between a PSTN alarm system and a PSTN GSM alarm system, consider the following factors:

  

  Reliability: Traditional PSTN systems are highly reliable but can be compromised if the telephone line is cut.

  

  Coverage: GSM systems provide better coverage in areas without reliable landline access.

  

  Cost: PSTN systems are generally less expensive, but GSM systems offer more features and flexibility.

  

  Features: GSM systems often come with advanced features like remote monitoring, control, and notifications.

  

  Conclusion:

  

  PSTN alarm systems offer reliable security through established landline networks, while GSM PSTN alarm systems provide enhanced flexibility and redundancy by combining traditional and mobile communication methods. Depending on your security needs and location, either system could be an effective solution to ensure safety and peace of mind.

What is the Purpose of Philips Head Screws

  Philips head screws are a fundamental component in a wide range of construction and manufacturing projects. Known for their cross-shaped slots on the head, these screws are designed to be driven with a Philips screwdriver, which fits snugly into the recesses of the screw head. The design allows for more torque to be applied during installation compared to traditional flat-head screws, making them a preferred choice in various applications.according to custom screw Industry veterans said that its development will still be in a good situation. https://shwhardware.com

  

  philips head screws

  

  Key Uses and Benefits

  

  1.Improved Torque and Grip: The cross-shaped design of Philips head screws allows for better torque distribution, reducing the likelihood of the screwdriver slipping out of the screw head during installation. This design is especially useful in situations requiring a secure and tight fit, such as in furniture assembly or electronic device manufacturing.

  

  2.Versatility Across Materials: Philips head screws are used in multiple materials, including wood, metal, and plastic. This versatility makes them a go-to fastener in different industries, from automotive to home improvement.

  

  3.Ease of Use: One of the most significant advantages of Philips head screws is their ease of use. The design ensures that the screwdriver remains centered on the screw head, reducing the risk of damaging the screw or the material it is being driven into. This makes Philips head screws particularly user-friendly for DIY enthusiasts and professionals alike.

  

  4.Widely Available and Standardized: Philips head screws are standardized and widely available in various sizes and materials, ensuring that they can be used for a vast array of applications. Their standardization also means that replacement screws are easy to find, making repairs and adjustments straightforward.

  

  philips head screws

  

  Common Applications

  

  Furniture Assembly: The reliable grip and torque of Philips head screws make them ideal for assembling furniture, where a secure fit is essential to ensure the stability and longevity of the pieces.

  

  Electronic Devices: In electronics, where precision and security are paramount, Philips head screws are often used to assemble components, offering a secure fit without damaging delicate parts.

  

  Automotive Industry: The automotive industry relies on Philips head screws for various applications, including securing panels, components, and interior fittings, where durability and reliability are crucial.

  

  Philips head screws have become an indispensable tool in many industries due to their unique design and practical benefits. Their widespread use in construction, manufacturing, and everyday DIY projects speaks to their reliability and effectiveness as a fastener. Whether you’re building a piece of furniture, assembling an electronic device, or working on your car, Philips head screws provide the strength, grip, and ease of use you need to get the job done right.

What do the items look like in the express security inspection machine

  I believe that all my friends have more or less experience in sending express delivery. After our express delivery arrives at the site, it will be inspected by the express security inspection machine. So how does the express security inspection machine detect contraband?with security screening machine 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://secuzoan.com/

  

  security scanners

  

  1. Recognition of X-ray images of gun express security inspection machines:

  

  Under the camera, metals are all dark blue and red, and most guns are made of steel, so a clear outline of the gun body is shown on the express security inspection machine camera. Simulation guns are mostly made of aluminum alloy, the metal density is not as high as that of real guns, and the structure of the barrel is also different from that of real guns. There is a plug in the barrel of the simulation gun, so the X-ray image of the express security inspection machine is not completely dark blue and red, only some blue and red on a single edge of the gun. As for toy pistols and plastic guns, they appear green or orange on the express security inspection machine camera. In this way, real guns, simulation guns and toy guns can be distinguished from the color and structure of the X-ray image of the express security inspection machine.

  

  2. Identification of X-ray images of controlled tool express security inspection machines:

  

  Controlled knives include daggers, switchblade knives, self-locking knives, and minority technical sabers. When the knife is not clamped and hidden, it has a significant shape and outline on the express security inspection machine camera, and its color is mostly dark blue and green.

  

  security scanners

  

  3. X-ray image recognition of explosives express security inspection machine:

  

  Explosives are mainly composed of explosives and fuse bodies. Explosives are mostly organic matter. The X-ray system of the express security inspection machine gives organic matter an orange-yellow color. Depending on the type, density and quantity of the explosives, the orange-yellow color may vary from light to dark. Some explosives have specific shapes and structures, such as block TNT, hardcover ammonium nitrate explosives, etc., which are relatively easy to find.

  

  4. X-ray image recognition of drug delivery security inspection machine:

  

  Heroin is in powder form, or compressed into regular blocks, and appears as a unique orange color on the camera of the X-ray system of the express delivery security inspection machine.