ASTM资源列表
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[国外标准] ASTM A493-95(2004) Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading an
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[国外标准] ASTM A490-08b Standard Specification for Structural Bolts,Alloy Steel, Heat Treated, 150 ksi Minimum
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[国外标准] ASTM A490-08a Standard Specification For Structural BoltasAlloy Steel,Heat Treated,150 ksiMinimum Te