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BS EN 10028-3-2009 Flat products made of steels for pressure purposes. Weldable fine grain steels, normalized 7 F+ |. U# n' |$ K4 \" r; ghttp://www.3dportal.cn/discuz/viewthread.php?tid=9347783 l1 }: k( s8 M7 q8 q X
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发表于 2011-10-28 14:44:18