plastic molds for connector parts 1.Material: SKD-11,SKH-51,SKD61,SKH-40 , ... . 2.EDM and grinding tolerance+-0.001mm plastic molds for connector parts 1) production mode : accroding to drawings and samples to ... process2) material:high-speed steel,SKD11,SKH9,SKH51, SKH553)standard : according to national standard GM, JIS,DIN,AISI ect4)technique advantage : grinding ...