... steel,copper ,brass.6. Equipment: 25-400ton punching machine, CNC machining, milling, turning, lathe cutting, planning machine, heat treatment ... drawings or samples.Rizhao Yuxin Motivity Co.,Ltd is a leading manufacturer and good supplier in China of machining ... parts. We have own professional mould development, assembly line, cold punching line. More than 1600 advanced machines for punching, turing, ...