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ASTM A227/A227M-06 Standard Specification for Steel Wire, Cold-Drawn for

  leunghb ·  2009-12-12 14:18  ·  31157 次点击
ASTMA227/A227M-06StandardSpecificationforSteelWire,Cold-DrawnforMechanicalSprings
[attach]39273[/attach]
标准手册, a227, a227m, standard, specification, steel, drawn

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