... 3.Design software:UG,PROE injection front bumper part mold manufacturer Kaihao Mold Co.Ltd is one of injection front bumper part ... as following. ItemDescriptionMold Name: injection front bumper part molding manufacturer Mold Core steel:S45C, S50C, P20, 2738, S55C, 718H, 618H, ... S136, 2316, NAK80,etc.Mold Cavity steel:S45C, S50C, P20, 2738, S55C, 718H, 618H, S136 ...