... , pre-hardeningCold-worked die, hot-worked die, plastic die, non-magnetic die steelDalian JinnumFlat Barthickness*width6-13*100-300Hot-rolling, annealing ... annealing, pre-hardeningCold-worked die, hot-worked die, plastic die, non-magnetic die steelFushunGrade Product CategorySteel GradeASTM,USA,ASTMJIS Japa,JISGermany,DINTechnical ... steel20, 35, 40, 50, 55, 60 ect GB699 25Cr2MoV alloy steel Flat Bar