I operated by the company for the seamless steel tubes: 10#, 20#, 35#, 45#, 20G, DZ40, DZ50, N80 alloy pipe for: 16Mn, 27SiMn, 12Cr1MoV, 15CrMo, 10CrMo910, A335P22, A106B, A335P91, Cr5Mo , A335P11, and other materials. Implementation of the standards: GB8162-1999, GB8163-1999, GB3087-1999, GB5310-1995, GB9948-88, GB6479-2000 GB5312-85, and so on. Supply of Chengdu, Baoshan Iron and Steel, Xining, the rule of steel, Hengyang, Anshan, Baotou,...
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