Lining pipe fittings three-way West-East Gas Pipeline second line of the central defender in Ningxia for the boundary, divided into two construction. Equipment rubber lining surface, sand holes, grinding seams or small depressions, as well as the need to bring a corner, should be brushed before the last mucus coating, brush glue, and dry glue, and then burn into a smooth transition to ensure a smooth lining surface smooth.
After lining plastic pipe fittings in China, galvanized pipes are gradually banned. PE pipes have competitive advantages in the fields of building water supply, etc. PE pipes in the fields of gas, industrial water supply, drainage, communication and agricultural irrigation and irrigation also show a rapid growth trend. However, some areas of pipelines have not kept up with standards and norms, and to a certain extent, have affected the application and development of PE pipelines.
