1. Look at the appearance. The printing or casting words and marks on the appearance of the original accessories are clear and formal, while the appearance of the counterfeit products is rough.
2. According to the color, the surface of some original parts shall be specified with a certain color. In case of other colors, they are fake and shoddy parts.
3. Look at the texture. The materials of the original accessories are qualified materials according to the design requirements, and most of the fake products are replaced by cheap and inferior materials.
4. Look at the illegal businessmen who simply process the waste parts, such as disassembly, assembly, assembly, painting, etc., and then sell them as qualified products to illegally obtain high profits.
5. Look at the "engagement". If the rivets of the clutch plate are loose, the brake hose is degummed, the joints of electrical parts are desoldered, and the joints of the paper filter element are separated, it cannot be used.
6. Look at the identification. Some regular parts are marked with some marks, such as timing gear mark, piston top mark and other assembly marks, which are used to ensure the correct installation of parts. If there is no part, you can't buy it.
7. Look at the "storage" of auto parts. If there are problems such as dry crack, oxidation, discoloration mirror or aging, it may be caused by poor environment, long storage time, poor material itself and so on.
8. Looking at the packaging, the packaging of original accessories is generally standardized, unified standard specifications, and the printing is clear and formal. However, the packaging and printing of counterfeit products is relatively poor, and it is often easy to find flaws in the packaging.
9. Some important parts, especially assemblies, such as carburetors, distributors, generators, etc., are generally delivered with instructions and certificates to guide users in installation, use and maintenance. If they are not, they are mostly fake and shoddy products.
10. Look at the protective layer. In order to facilitate storage and prevent parts from bumping, the parts have protective layers before leaving the factory. For example, bushings, large and small bearing shells, pistons and valves are generally protected with paraffin to avoid surface damage. If there is no protective layer on the surface of these important accessories, they are mostly "parallel goods".
11. In order to ensure the smooth posturing and normal operation of the vehicle, the normal assembly parts must be complete and intact. Individual small parts on some assemblies are missing, which are generally "parallel goods", which makes it difficult to load. The whole assembly is often scrapped due to the shortage of individual small parts.
12. When purchasing auto parts according to the specifications, it is necessary to find out the main technical parameters, and the special technology should meet the use requirements. The appearance of some fake and shoddy products is almost the same as that of the real products, but it is not suitable to install them. They are either larger or smaller. They are always dissatisfied with their use and leave hidden dangers of accidents.
13. The appearance of products with poor workmanship is sometimes good, but due to poor manufacturing technology, cracks, sand holes, slag inclusions, burrs or bumps are easy to appear. For example, the cylinder gasket is extruded and deformed, which is easy to cause ablation due to loose sealing, resulting in oil leakage, air leakage and water leakage; There are burrs on the working surface of piston and piston ring, which is easy to pull the cylinder.