Pure silver wire:purity quotient 99.99%.The chemistry composition performance standard: GB/T4135-2002The product specification size performance standard: GB¦¸71-79Specification size: ø0.1-ø6.5mm.We can produce and pack according to customer's request, also can request to produce the silver alloy wire: ( The silver cadmium oxide series, silver nickel series ,silver zinc series)