C72500, Cupronickel, Copper Nickel Tin alloy steelmax2019-01-01T11:37:40+09:003월 22nd, 2018| C72500 Uses for Relay and switch spring, connectors, control and sensing bellows, lead frame 으로 사용하며 냉간, 열간 작업성 (Workability)이 우수한 금속으로 Blanking, Coining, Drawability, Forming, Bending