... used in mutual inductor 4.OEM is ok 5.nickel coating Item nameshuntsSpaceOver 7000 square metersPunchesOver 130 sets ( ... ten years experience in metal stamping parts.MaterialStainless steel, iron ,aluminum alloy, red copper, brass, bronze alloy, ... , sound ,car GPS ,Car chargers, etc.Coatingnickel plating, zinc plating, color zinc plating, acid pickling, etc.PackingCartons, honeycomb carton, also ...