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SUS301 321 1.4301 1.4307 250HV-560HV Extra-Hard 0.2mm Thick Stainless Steel Strip Production Description of 301 1. chemical composition%C:≤0.15, Si: ≤1.0, Mn:≤2.0, Cr: 16.0~18.0, Ni: 6.0-8.0, S:≤0.03, ...