名称：对焊管配件.第4部分:具有特殊检验要求的锻制奥氏体和铁素体-奥氏体(二相)不锈钢。英文名称：Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels ..
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Steel plate butt-welding pipe fittings 钢板制对焊管件 ; 钢板制对焊管配件
Steel butt-welding pipe fittings 钢制对焊管件
Steel plant butt-welding pipe fittings 钢板制对焊管件
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