... welding 4.Wear silk smooth 5.Surface bright, no burr.. Name: Copper nickel wire,Greman silver,nickel wire,white copper wireNumber ... within 2 wire;High-strength high-elastic easy welding;Wear silk smooth;Surface bright, no burr. ... ;4.CuCrZr:C18150,C18200, C15000;5.White-Copper(copper-nickel):BZn10-25,BZn12-25,BZn15-20,BZn18-20 ... &hardness,good wear resistance;10. Silver-copper Alloy Copper nickel wire