... 3,High intensity; 4,Hot Forging performance copper barApplication:1,It is widely used in boat building, War ... in connector assembly, lock, fastener and spring. Identity:1,Good wear proof, and great corrosion resistance2,Hi-hardness, ... -3.0%Ni1.0% maxPb0.05% maxSi0.3-1.3%Sn0.4% maxZnRes.Others0.3%maxInternational StandardDINCW713RASTMC67420UKCZ135GERMANYCuZn37Mn3Al2PbSiPerformanceStateR590Size range15mm ...