Country-wise HS code tariff relief

Car engine parts (car engine parts: make your car run faster and Country-wise HS code tariff relieffarther) Car engine is the heart of the car and one of the most core parts of the car. Engine parts are various devices and components in the engine. These components work together to complete the transmission of the power output and driving torque of the vehicle. The engine requires a large number of parts and a wide variety. The following will introduce the parts of the car engine and their functions in detail.1. The cylinder head is the upper shell of the engine, which is located at the top of the engine cylinder. The main function is to close the top of the cylinder, so that the cylinder forms a closed space, and at the same time cover the combustion chamber to play a sealing role. Because the cylinder head is located in a high-temperature and high-pressure environment, it needs to withstand very high pressure. At the same time, it needs to maintain a certain degree of rigidity and avoid deformation and other problems. The cylinder head is usually made of metals such as cast iron or aluminum alloy. Two. Piston piston is an important part of the engine, which can be said to be the "heart" of the engine. It is a component that connects the connecting rod and the crankshaft. Its function is to convert the energy generated by the combustion of fuel in the combustion chamber into mechanical energy and transmit the mechanical energy to the crankshaft. The centrifugal force and inertial force borne by the piston when rotating at high speed are very large, so it needs to have extremely high strength and rigidity.Pistons are usually made of aluminum alloy and other materials, and some manufacturers have specially treated their surfaces to improve their wear resistance and durability. 3. Piston ring Piston ring is also one of the indispensable parts of the engine. Its function is to seal the gap between the piston and the cylinder to increase the tightness of the engine, and also to reduce problems such as oil and gas leakage. The material of the piston ring is usually high-grade alloy steel or copper alloy, and some manufacturers also plate or coat the surface of the piston ring to improve its corrosion resistance and wear resistance. Four. The connecting rod is also a very important part of the engine. It is one of the necessary devices to convert the motion of the piston into the rotational motion of the crankshaft. Connecting rods are usually made of steel or aluminum alloy, among which a variety of superhard materials are also used in certain types of engines. 5. CrankshaftThe crankshaft is a major part of the engine. It plays the role of converting the up and down reciprocating motion of the piston into a rotating motion, thus driving the car. The material of the crankshaft is usually high-strength cast steel or alloy steel, etc. Some manufacturers also use special combination materials to improve the stability of its rotation. 6. The rocker arm is one of the important parts of the engine. Its main function is to transmit the opening and closing of the valve to the cam. The material of the rocker arm is usually cast iron or aluminum alloy, and some manufacturers will also carry out special treatment on the surface of the rocker arm to improve its friction resistance and durability. In a word, automobile engine parts are one of the most core parts of the vehicle, and it bears the important mission of converting chemical energy into mechanical energy. In terms of ensuring the stability and durability of automobile performance, the quality and manufacturing process of various parts are very important.Therefore, when buying a car engine, car owners must choose high-quality and well-made high-quality parts, so that the vehicle can run faster and further.

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