... plate 1730,2311,2312,P20 )Material main core and cavity insertDIN2312,2738,2344,718,S136,8407,NAK80,SKD61,H13Hardness of ... steel46~56HRCMaterial for Slider ,Lifter and all sub insert use1.2767 HRCCavitySingle-cavity ,Multi-cavityA surface request:EDM & High PolishGateCold ... terminal outer housings, washbasins, buckets, sinks and tire covers. injection mold manufacture custom made plastic car models