99资源列表
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[国外标准] ASTM A229/A229M-99(2005) Standard Specification for Steel Wire, Oil-Tempered for Mechanical Springs
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[国外标准] ASTM A227/A227M-99(2005) Standard Specification for Steel Wire, Cold-Drawn for Mechanical Springs
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[国外标准] ASTM A111-99a(R2004) Standard Specification for Zinc-Coated (Galvanized) Iron Telephone and Telegrap
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[国外标准] ASTM A111-99a(2004)e1 Standard Specification for Zinc-Coated (Galvanized) Iron Telephone and Telegra