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Hot Rolled Plastic Mold Steel Round Bar 1.2083 / SUS420J2 / 420 1. Equivalent grades GB DIN AISI JIS 4Cr13 1.2083 420 S136 2. Chemical Composition(%) C Si Mn P S Cr Mo V 0.30-0.40 0.30-0.70 0.40-0.80 ...