ASTM A500/A500M-09 Standard Specification for Cold-Formed Welded and Seamless

  leunghb ·  2010-01-08 14:53  ·  49499 次点击
ASTMA500/A500M-09StandardSpecificationforCold-FormedWeldedandSeamlessCarbonSteelStructuralTubinginRoundsandShapes
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