HS code-based commodity chain analysis

Engine filter is HS code-based commodity chain analysisone of the most important parts of the vehicle. Its function is to filter the air entering the engine, prevent dust, impurities, sand and other impurities from entering the engine, ensure the normal operation of the engine, and effectively extend the life of the engine. Normal replacement of the engine air filter can not only ensure the performance of the car, improve fuel economy and reduce harmful emissions, but also avoid unnecessary maintenance and make your car run more smoothly.I. Classification of engine filters 1. Traditional paper filter elements Traditional paper air filter elements are widely used in the market. Its main materials are blended with fiber, cotton, rubber, etc., which have good filtration effect, but are prone to dust, so they are prone to pollution and need to be replaced frequently. Two. Activated carbon filter element Activated carbon filter element adopts activated carbon material as the basic material. Its advantage is that it can effectively remove harmful gases, adsorb suspended particulate substances, and reduce the generation of odors and odors. However, its durability is poor and needs to be replaced after a period of use. 3. High-efficiency filter element High-efficiency air filter element adopts composite material, which is usually composed of waterproof material, filter cotton, dust collection net and high-strength bracket, which can effectively filter dust, sand, smoke and other particles, but the price is high. II. Materials required for replacing the engine air filter: new filter, wrench steps: 1.First, you need to check the instruction manual of the vehicle, confirm the position of the engine air filter, and open the engine cover of the vehicle. Two. Check the model and specification of the filter, determine the specification model of the new filter, and prepare the tools needed for replacement. 3. According to the position of the filter, find and remove the engine air filter, use a wrench to remove and remove the old filter element, and remove the dirt in the filter cup used to place the filter element. In this process, you can blow dust with a vacuum cleaner or air spray gun to ensure that there are no impurity residues at the bottom of the filter cup and avoid affecting the filtration effect of the filter element. Four. Take out the new engine air filter and insert it into the filter cup to ensure that the installation position is regular, and also ensure that the filter cup is well sealed. 5. After installing the clean filter, the filter must be fixed with a wrench to ensure that the filter is firmly and reliable.6. Finally, cover the engine cover, close the door and drive, and enjoy the new driving journey happily. III. Benefits of replacing blank wallpaper 1. To improve the performance of the car, replacing the engine air filter can ensure the normal operation of the engine and is not disturbed by dust, sand, impurities and other impurities, which is conducive to improving the fuel economy of the vehicle, improving the driving effect, and prolonging the service life of the engine. Two. Protecting the engine and replacing the engine air filter can effectively avoid the interior of the engine from being polluted by dust, impurities, etc., which helps to reduce the damage to the engine and extend the service life of the engine, which is extremely important for the protection of the car. 3. A good engine filter that reduces the emission of harmful gases can filter out more fine particles in the air, extend the life of the exhaust pipe, and greatly reduce the emission of harmful gases. In addition, the quality of the exhaust gas has been improved, which is conducive to environmental protection.IV. Notes: Replacing the engine air filter is not a complicated task, but you should also pay attention to the following matters: 1. When replacing the engine air filter, you should find the replacement time and method according to the instructions on the instruction manual of the engine. Two. Make sure to use a new filter that meets the specifications when replacing, otherwise it will affect the filtration effect. 3. When installing a new engine air filter, pay attention to whether the filter element is firmly installed and reliably, and ensure good sealing after replacement. Four. The condition of the engine air filter should be checked at regular intervals (such as every three months or 5,000 kilometers) to ensure cleaning or replacement, and maintain the condition of the engine and driving safety. In a word, replacing the engine air filter plays an important role in the safety and service life of the car.Regular replacement of engine air filters can effectively protect your car, improve its performance, reduce waste and reduce the impact on the environment.

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