... electric spark, more than ten sets of home equipment, include 6. 3T-125T puncher2MaterialIron, carbon steel, stainless steel, brass, copper, alloy ... custome approve the mould sample ,we will start making mould.↓ 6.Mould processProvide photos for customer to show the process.↓7 ... any time! precision sheet metal punch bending parts as manufacturer abs sheet ningbo