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.