Correct identification of auto parts

What's the best way to buy auto parts? How to choose the right cost-effective auto parts, here, I recommend the following skills to help you choose good auto parts: loss should be returned.

1. Looking at the packaging of the original accessories, the packaging is generally more standardized, unified standard specifications, clear and regular handwriting, while the packaging and printing of counterfeit products is relatively poor, so it is often easy to find defects in the packaging;

2. Look at the color of some original accessories surface designated a certain color, in case of other colors, it is counterfeit parts;

3. Look at the appearance of the original factory accessories, the appearance of printing or casting words and marks are clear and regular, and the appearance of counterfeit products is rough;

4. The illegal paint merchants will simply process the waste parts, such as dismantling, assembling, assembling, assembling, painting and so on, and then sell them as qualified products to illegally obtain high profits;

5. According to the quality, the materials of the original accessories are qualified materials according to the design requirements, and most of the counterfeit products are replaced by cheap and inferior materials;

6. Although the appearance of the products is good sometimes, due to the poor manufacturing process, cracks, sand holes, slag inclusion, burr or bruise are easy to appear;

7. If there are problems such as cracking, oxidation, color changing mirror or aging of auto parts in "storage", it may be caused by poor environment, long storage time and poor materials;

8. If the clutch plate rivets are loose, the brake hose is degummed, the electrical parts joint is desoldered, and the paper filter element joint is detached, it can not be used;

9. There are some marks on the regular parts, such as timing gear mark, piston top mark and other assembly marks, which are used to ensure the correct installation of the machine parts. Those that are not available can not be purchased;

10. In order to ensure the smooth loading and normal operation, the normal assembly parts must be complete and intact. Some small parts on some assembly parts are missing, which is usually "parallel goods", which makes it difficult to load. Due to the shortage of some small parts, the whole assembly parts are scrapped;

11. Look at the protective layer. In order to facilitate storage and prevent parts from bumping, there is a protective layer before the parts leave the factory. For example, bushing, large and small bearing bush, piston, valve, etc. are generally protected by paraffin wax to avoid surface damage. If there is no protective layer on the surface of these important accessories, they are mostly "parallel goods";

12. Some important parts, especially assembly, such as carburetor, distributor, generator, etc., are usually provided with instructions and certificates when they leave the factory to guide users to install, use and maintain. If not, most of them are counterfeit products;

13. When choosing 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. Some fake and shoddy products have the same appearance as the real ones, but they are not suitable to be installed. They are either larger or smaller. They are not satisfied with the use and leave hidden dangers.

14. The test report issued by the third party can not only prove the authenticity, but also show its quality.