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What are the good methods for the purchase of auto parts products, and how to buy the most suitable and cost-effective auto parts? Here, recommend you the following tips to help choose the best auto parts: loss should be returned.
1, look at the original packaging accessories packaging is generally more standardized, unified standard specifications, printing and writing clear and formal, and counterfeit products packaging printing is relatively poor, often can easily find flaws from the packaging;
2, look at the color of some original accessories surface designated a certain color, if the other color, it is fake spare parts;
3, look at the appearance of the original accessories appearance printing or casting and marking clear and formal, and counterfeit products appearance rough;
4, look at the paint illegal businessmen will be waste parts after simple processing, such as disassembly, assembly, assembly, gather together, paint and other treatment, and then pretend to be qualified products for sale, illegally obtain high profits;
5, look at the quality of the original accessories material is according to the design requirements of qualified materials, fake products are mostly used cheap and inferior materials instead;
6. Although the appearance of products with inferior technology is sometimes good, due to poor manufacturing technology, cracks, sand holes, slag inclusion, burrs or bumps are prone to occur;
7. If there are problems such as dry cracking, oxidation, color changing mirror or aging, it may be caused by poor environment, long storage time and poor material itself;
8. Look at the "joint". If the rivets of the clutch plate are loose, the brake shoe tube is degummed, the joints of electrical parts are desoldered, and the joints of the paper filter element are detached, it cannot be used;
9. Look at the regular parts marked with some marks, such as gear marks, piston top marks and other assembly marks, which are used to ensure the correct installation of the parts. If not, they cannot be purchased;
10, see the missing regular assembly parts must be complete and intact, in order to ensure smooth loading and normal operation. Some small parts on the assembly are missing, usually "parallel goods", which cause difficulties for loading. Often due to the shortage of individual small parts, resulting in the entire assembly parts 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, bushings, large and small bearings, pistons, valves, etc. are generally protected by paraffin to avoid surface damage. If these important accessories have no protective layer on the surface, they are mostly "parallel imports";
12. Look at some important parts of the certificate, especially the assembly category, such as carburetor, distributor, generator, etc., usually with instructions and certificates when leaving the factory to guide users to install, use and maintain. If not, these are mostly fake and shoddy products;
13, look at the specifications to buy auto parts, to find out the main technical parameters, special technology to meet the requirements of use. Some fake and inferior products are almost the same in appearance as the real ones, but it is not suitable to install them. They are either bigger or smaller, and they are always not satisfied with their use, leaving hidden dangers of accidents.
14. The test report issued by a third party can not only prove the authenticity, but also show its quality.