(1)Cold rolled steel. SPCC,SAE1008,SAE1010,SAE1015 S45C,S50C,S55C,S70C,SAE1078,CS80, CK60 SK4,SK5, SCM435, SNCM220 50CrV4
(2)Hardened & Tempered steel S45C, S55C, S70C, SAE1078, CS80 SK4, SK5, ...
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