... ,B plate 1730,2311,2312,P20 ), etcMaterial main core and cavity insertDIN2312,2738,2344,718,S136,8407,NAK80,SKD61,H13, etcHardness ... for Slider ,Lifter and all sub insert use1.2767 HRCCavitySingle-cavity ,Multi-cavityA surface request:EDM & High PolishGateCold runner,Yudo/DME ...