"Disc interference may result when valves are installed in pipelines having smaller than normal inside diameters, such as heavy wall pipe, plastic lined pipe, or as cast flanges."
This paper introduces the rehabilitation procedure of PE lined pipeline and stresses on quality control requirement of PE pipe heat melting welding.
Teflon-lined pipe, casing, Elbow, the three exchanges or four, size head, cylinder, air compressor- oxygen-ring, gasket seal ring and auto parts.
