... . 2.Professional design staff 3.Rigorous process High quality precise rubber mould with two colors for Golf clubs set Our advantages ... and milling machine,high precision surface grinding machine and complete set of numerical control equipment.4.High quality with rigorous process ... Steel718H,P20,2738,ect4Material HRC28-605Products materialPP,PE,PA,PC,ABS,PPS,EPDM,SILICONE ect6Runner Cold runner / Hot ...