Steel资源列表
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[国外标准] JIS G7226-2003 Welded steel tubes for pressure purposes - Technical delivery conditions - Part6:Long
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[国外标准] JIS G7223-2003 Welded steel tubes for pressure purposes - Technical delivery conditions - Part1:Unal
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[国外标准] JIS G7221-2003 Seemless steel tubes for pressure purposes - Technical delivery conditions - Part3:Un
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[国外标准] JIS G7220-2003 Seemless steel tubes for pressure purposes - Technical delivery conditions - Part2:Un