搜索 bolting 文章

55850 ASTM A540/A540M-06 Standard Specification for Alloy-Steel Bolting Materials
技术  •  leunghb  •  2010-01-10 15:32
62897 ASTM A453/A453M-08 Standard Specification for High-Temperature Bolting Materials
技术  •  leunghb  •  2010-01-02 16:01

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