Screw screws should be noted when plating

2017-10-18

At present, most of the screw screws need to be plated, and now electroplating factory plating products are more, many products are mixed together for...[view more]

Why does the stainless steel also take the magnet?

2017-10-18

People often magnet adsorption of stainless steel, to verify its advantages and disadvantages and authenticity, do not smoke non-magnetic, that is gen[view more]