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Nowadays, the car has become an indispensable tool in our life. Both travel and daily transportation provide us with great convenience, so that the distance is no longer so far. But most people don't have a deep understanding of the car. They only know how to use it, but don't know how to maintain it. Today, let's have a deeper understanding of our car.
（1） Classification by nature of use
Auto parts can be classified into five categories according to the nature of use of parts
1. Basic parts: refer to some main assembly parts of the automobile, such as crankshaft, cylinder block, cylinder head, camshaft, frame, axle housing, transmission housing, etc
2. Consumable parts: refer to parts that must be replaced due to natural aging, failure and expiration during vehicle operation, such as various transmission belts, filter elements, gaskets, tires, batteries, etc
3. Vulnerable parts: refer to parts that are easy to be worn out naturally and become invalid during vehicle driving, such as bearing bush, piston ring, piston, cam bearing bush, sleeve cylinder, air valve, guide pipe, kingpin, kingpin bushing, wheel hub, brake drum, various oil seals, steel plate pins and sleeves, etc
4. Maintenance parts: maintenance parts refer to the parts that must be replaced after a certain operation cycle, such as various shafts, gears, fasteners of various moving parts, and parts that must be replaced in a certain service life, such as some fasteners, steering knuckle, half shaft sleeve, etc
5. Incident: incident refers to the parts of the vehicle damaged mainly due to the accident, such as bumper, lamp, rearview mirror, body covering, radiator, etc
（2） By source of parts
If divided according to the supplier source of automobile parts, it can be divided into two categories: one is called original parts; the other is called suitable parts.
The so-called original parts refer to the parts and products produced by the original equipment manufacturer (OEM) in full accordance with the standards specified by Qifeng manufacturing, which are specially used by the automobile manufacturer for maintenance and replacement. These products meet the standards specified by the original manufacturer, and have the original trademark and original part number (sometimes OEM trademark) . original packaging. These products are generally supplied through special dealers or special service stores of automobile manufacturers. They are not provided by the original manufacturer, but can be applied to the same model as the corresponding original parts. Such parts are called applicable parts. The situation is somewhat complicated.
