ASTM A49-01 Standard Specification for Heat-Treated Carbon Steel Joint Bars
leunghb · 2009-11-12 03:33 · 40289 次点击
ASTMA49-01StandardSpecificationforHeat-TreatedCarbonSteelJointBars,MicroalloyedJointBars,andForgedCarbonSteelCompromiseJointBars
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