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The company's main : Cheng Gang, Bao Steel, Anshan, Baotou, smelting steel, Tianjin, Cheng Gang, Xining Special Steel, Anshan Steel, Chengde, Wuxi, Wuhan, Honduras, and so several major steel plant structure tubes, fluid tubes, high pressure boiler tubes, low pressure boiler tubes, seamless steel pipe, seamless pipe, fertilizer, petroleum cracking pipe, oil casing, alloy tubes. Materials are 10 # , 20 # , 35 # , 45 # , 20G, 16Mn, P22, P23 , P91, T91, Cr5Mo, 42CrMo, 30CrMO, 12Cr1MoV, 15CrMoG, 27SiMn, 40Cr, 15CrMo, 35CrMo, 42CrMo, 12CrMov, 10CrMo910 and so on. http: / / www.sjjk1688.cn.alibaba.com
: 10 # , 20 # , 35 # , 45 # , 20G, GB5310-95, St45.8-
