... ,.SpecificationsAISI H13 Tool Steel: moulds with high polishing and long life time competitivce price large stocks Steel Grade ... tensile strength properties, high hot wear resistance, good machinability and polishability, fine grain size with high level toughness, ... screws,nuts, rivets and bolts, moulds, worms and cylinders for the processing of plastics, press dies and die inserts, rolls for profiling ...