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标题: BS PD 970:2005 Carbon steel [打印本页]

作者: andykidd 时间: 2015-11-9 16:14:41 标题: BS PD 970:2005 Carbon steel

BS PD 970:2005 Wroughtsteels for mechanical and allied engineering purposes - Requirements for carbon,carbon manganese and alloy hot worked or cold finished steels

作者: admin 时间: 2015-11-9 16:43:57

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