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The operating items: Tianjin Seamless Steel Tube Plant, Tianjin Seamless Steel Tube Plant by the production of steel, alloy pipe, stainless steel, high-pressure boiler tubes, as well as some imports of seamless tube, seamless steel tubes, alloy pipe, stainless steel tube. The Company is now selling Chenggang, Baotou Steel, Baoshan Iron and Steel, Anshan Iron and Steel Company, Tianjin, Daye, Hengyang, such as steel production of seamless tube, made of: 10 #, 20 #, 35 #, 45 #, 16 Mn 27SiMn. Technical standards: GB8162-99 of the structure, GB8163-99 of the fluid, GB3087-1999 low pressure in the boiler tubes, GB5310-1995, ST45.8, - Άσ high-pressure boiler tubes, GB6479-2000 for possession of chemical fertilizers, GB9948
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