The Liaocheng Tongli Steel pipe Co., Ltd. was founded in 2001 . It’s a production and trade of the large enterprises . Annual sales of steel production of a variety of steel pipes, seamless steel pipe , precision seamless steel pipe , alloy pipe , stainless steel pipe, the seamless pipe of large-caliber , the seamless tube of small-caliber , stator pipe , in the low - pressure boiler pipe , High Pressure Boiler pipe , structural pipe , fluid flowing pipe , fertilizer dedicated pipe , petroleum cracking pipe and so on. 　　　　　The company invested 220 million RMB in 2005 , three of the new hot-rolled production line , cold drawing unit four , finishing mill 6 , quilting grinding unit four . Can be customized all kinds of special thick-walled seamless shaped seamless steel pipe , shaped steel, finish steel , subsection grinding tube . Main spiral profiled steel seamless pipe , fan-shaped pipe, Plum pipe , diamond-shaped pipe, rectangular pipe , ladder pipes , H-shaped pipe , the word pipe , the 8 word pipe, triangle pipe , square pipe, six pipe , oval , etc. a variety of shaped pipe . Applicable to all types of customers actual needs. Number of domestic and Pipes, steel and fill the blank . All varieties, order fast. Meet the requirements of other shaped tubes shaped steel can also be customized according to the special requirements of customers . Excellent quality, reasonable price, my unit with a good reputation and perfect service , adequate supply in the domestic industry reputation . 　　　Main Material: 10 # , 20 # , 45 # , 201、301、304、316、316L、20G , 40Cr , 20Gr , 16Mn - 45Mn , 27SiMn , Cr5Mo, 12CrMo (T12 ) , 12Cr1MoV , 10CrMo910 , T91, 15CrMo, 30CrMo , 35CrMo , 40CrMo , 42CrMo , etc.