zinc plated can be made as your required 1) chinese manufacturer. 2) high quality with competitive prices ... , din 985 , din 982- 2)Physical performance:a) class 2, made from low carbon steel, C1008, C1010, Q195 etcb) class 5 ... , class 8, made from high carbon steel such as C1035, C1045, etc, And with hardened treatment.c ...