Steel lining plastic polytetrafluoroethylene pipe. Famous steel plastic composite pipe. Select the DuPont Co of the United States, DuPont Co. Japanese xasii, Dajin fluoroplastics. Used for pipe anticorrosion lining. The service life is up to 15-30 years. The physical and chemical properties are nontoxic and tasteless. The melting point is 270 degrees centigrade. The temperature range is.-60 C ---180 C. The thermal decomposition is 320 degrees centigrade. The steel pipe is made of GB/T12459-2005 seamless. Selection of flange and hoop connection. Company's contract design and installation service.