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    郑州中远专业生产***螺旋管、河南螺旋管、郑州螺旋管、河南螺旋钢管、郑州螺旋钢管、大口径螺旋管、螺旋钢管、螺旋管、打桩管、打井管、桩基管、地埋螺旋管、螺旋焊管、电力钢管、给水管、排水管、煤气管道、蒸气管道,拥有3条国内至大口径3620螺旋钢管生产线,可定制国标螺旋管、非...北调工程引水工程 西安热电使用河南螺旋...

     [Piping Tubing] - www.cn-zzz*.com - UTF-8 - 2015-11-23


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