1.Zinc-base alloy 2.Perfect copper substitutes 3.Price is a 40 per cent lower than copper alloy 4.Strength is higher ... , if manufacturing process control of good, compared with copper alloy to durable more than two times, indirect saving cost 68000 ... dollars7.Below are zn-base alloy and copper alloy main performance cross-references 8.Below are casting zinc alloy mechanics performance table 9.I ...