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ASTM A490-09 Standard Specification for Structural Bolts, Alloy Steel, Heat

  leunghb ·  2010-01-08 10:53  ·  41865 次点击
ASTMA490-09StandardSpecificationforStructuralBolts,AlloySteel,HeatTreated,150ksiMinimumTensileStrength
[attach]39860[/attach]
标准手册, a490, standard, specification, structural, bolts, alloy, steel

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