EN31SAE52100钢材
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S70CM钢板成分S75CM
BS970708A42合金钢
X45CrMoV15钢板规格,1.4120
SS316LHR钢铁SS431T
45MnBH,热模合金钢、20MnMoBH
ASTMA534ASTMA515M进口模具钢
KEA145KE960钢厂
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B20VB9ULS145各种钢材的硬度
RIM215RIM213,钢材