Where hardware products are involved, we must see whether the treatment of antirust technology is home. Copper, iron, gold, silver, tin itself has the characteristics of love rust, which requires the production of hardware tools must have ultra-high rust prevention technology. When choosing and buying, you can see whether the product will leave a thick oil mark on the hand, whether the hand will be sticky, if there is, this product is generally unqualified. In addition, it can be distinguished by smell. If the product has a pungent odor, it is generally omitted in the production.

Hardware products can be printed with brand words, label to wait commonly. The font is very small, but the factory produces most of the use of steel printing technology, and in the heat treatment before the word, so although the font is small, but deep concave, very clear. And the fake products of the font is fuzzy, because the printing technology is rough, the font floating on the surface, some surface design can also be erased.