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ASTM A709/A709M-09a Standard Specification for Structural Steel for Bridges

  leunghb ·  2010-01-30 09:02  ·  34233 次点击
ASTMA709/A709M-09aStandardSpecificationforStructuralSteelforBridges
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标准手册, a709, a709m, 09a, standard, specification, structural, steel, bridges

1 条回复

z8212020  2011-02-18 09:33
呵呵,谢谢LZ分享

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