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Hot Rolled Carbon Tool Steel Plate S50C For Making Injection Plastic Mould ► Chemical Composition(%): C Si Mn P S Cr Ni Cu 0.41-0.50 0.15-0.35 0.6-0.9 ≤0.035 ≤0.035 ≤0.25 ≤0.25 ≤0.25 ► Introduction: ...