... DIN,JIS,NFE,USS,SAE BS and so on) of material(A2,A4,A3.....) Surface treatment Zinc coat(CR3),Zinc coat ... , Electric galvanized, Black,Dacromet. Specification DIN,ANSI,ASME,NFE,BA, JIS,and Non-standard Material Carbon steel,45#,65Mn Package Boxes-->cartons ... materials (A2,A4,A3,Brass and so on),most of material is imported from South Korea USA and Japan and so ...