... tougness. 4.Large stocks Hot work mould steel sheet 1.2344, alloy steel sheet 1.2344/H13/ SKD61/ 4Cr5MoSiV11.Specifications1)Round bar:Diameter : 1mm-2000mm2)Square ... inserts, rolls for profiling tools,hot extrusion equipments, trimming tools, plastic moulding dies, severe cold punching, scrap shears, shrink rings, wear ...