Knowledge of national standards with national standards 1. Structural steel seamless steel pipe seamless steel pipe (GB / T8162-1999) is used for seamless steel tubes for general structural and mechanical structure. 2 fluid seamless steel pipe (GB / T8163-1999) is generally seamless for conveying water, oil, gas and other fluids. 3. The low-pressure boiler seamless steel pipe (GB3087-1999) is used in the manufacture of various structural low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam locomotive boiler tubes, opium pipe, small pipe and brick arch effective high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe. 4. High-quality carbon steel high-pressure boiler seamless pipe (GB5310-1995) is used to manufacture high-pressure and more pressure water tube boiler heating surface with steel, alloy steel and heat-resistant stainless steel seamless steel tubes. 5. fertilizer equipment, high pressure seamless steel pipe (GB6479-2000) is applicable to operating temperature -40 ~ 400 ℃, working pressure of high-quality carbon structural steel and alloy steel 10 ~ 30Ma of chemical equipment and seamless steel pipes. 14. Cold-drawn or cold rolled precision seamless steel (GB3639-2000) is a high dimensional accuracy for the mechanical structure, hydraulic equipment and good surface finish drawn or cold rolled precision seamless steel tubes. Use precision seamless steel pipe manufacturing mechanical structure or hydraulic equipment such as 16 Mn seamless steel pipe use, can greatly reduce machining time, improve material utilization, and help to improve the quality of products. 15. The structure of stainless steel seamless pipe (GB / T14975-2002) is widely used for hot-rolled chemical, petroleum, textile, medical, food, machinery and other industrial corrosion resistant pipes and structural parts and components made of stainless steel ( extrusion, expansion) and cold drawn (rolled) seamless steel pipe. 16. The fluid transport stainless steel seamless pipe (GB / T14976-2002) is used for the transmission fluid hot-rolled stainless steel (extrusion, expansion) and cold drawn (rolled) seamless steel pipe. 16 Mn seamless steel pipe manufacturers, Changde 16 manganese seamless steel pipe Co. virtue by virtue Liaocheng Pipe. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead virtue of Industry and you work into the brilliant, for a better future!