DIN1587 DIN986
DIN, ANSI, GB, JIS, GOST, BSW
Carbon Steel, Stainless Steel, Brass, Nylon, etc.
DIN, ANSI, GB, JIS, Bsw, GOST
3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9
Machinery, Chemical Industry, Environmental
Hot Galvanizing, Black, Color-Zinc, Blue-White Zin
Plastic Bag and Carton