... (like DIN,JIS,NFE,USS,SAE BS and so on) of material(A2,A4,A3.....) Surface treatment Zinc coat(CR3),Zinc ... , stamping parts, nut, screw and other mechanical parts in kinds of standards, specifications and materials (A2,A4,A3,Brass and so ... on),most of material is imported from South Korea USA and Japan and so on. QILE METAL has import-export licence , and ...