molding injection
sing. rubber injection It is purchased as a two-part raw material with a grease-like viscosity. injection product At present,dimensional precision of common plastic parts is required to IT6-7,surface roughness Ra0.2-0.1mm.Dimensional precision of matching plastic injection mold parts is requiredmolding injection to reach IT5-6,and surface roughness should be below than Ra0.1mm. Roughness of laser disc recording surface should reach to level of mirror finishing,0.02-0.01mm. So,the surface roughness of mold should be lower than 0.01mm. injection part For molds with extremely low requirements,S50C and 45# s