Whether the outer packaging is clear: In general, the brand of the factory has its own dedicated designer to design the outer packaging, and arranges the factories that pass the production conditions for production. Therefore, the packaging is very clear from lines to color blocks, and it is not ambiguous. , Some imported brands have unique designs on their packaging to protect their intellectual property.
Whether there is turbid oil on the surface: This should be paid special attention when purchasing imported bearings. As the current domestic rust prevention technology is not particularly home, it is easy to leave thick oil marks on the bearing body when it is rust-proofed, and it is sticky and sticky on the hand, while the original imported bearings are almost invisible. When it comes to the traces of rust-proof oil, the experts who are very careful say that imported bearings smell a smell. It must be the rust-proof oil, but it can't be seen.
Whether the steel stamp is clear: The brand words, labels, etc. will be printed on the bearing body. The font is very small, but most of the products produced by the factory use stamping technology, and it is embossed before heat treatment. Therefore, although the font is small, it is deep and very clear. The font of counterfeit products is not only vague. Because of the rough printing technology, the font floats on the surface, and some can be easily erased by hand.