... nickel products purity above 99.5% surface polish color:black,shining Standard : ASTM B164-03, GB/T3210-82 color:black,shin Specificationsnickel wire ... has series of advantages as small density, high surface load, high resistivity, high service temperature, long life-span and ... has series of advantages as small density, high surface load, high resistivity, high service temperature, long life-span and ...