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Tianjin, China Steel steel win-win Ltd.Major manufacturing and sales all kinds of seamless steel tube outer diameter of 8mm ~ 720mm, wall thickness of 1mm ~ 120mm, is with the Metallurgical Steel, Tianjin Steel Tube Co***ny, Hengyang, Baoshan Iron and Steel, Steel, Gang, Xining Special Steel, Anshan Iron and Steel, S. Megga, Wuxi , Wuhan, Hongdu, such as domestic products, import business JAPAN JFE, NKK Germany, the United States, ***in, Russia and other materials for 10 #, 20 #, 45 #, 17SIMn, 16Mn (Q345BCD...
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