1, steel wire mesh skeleton plastic composite pipe, the use of high-quality materials and advanced production technology, so that it has higher pressure resistance. At the same time, the composite pipe has excellent flexibility and is suitable for long distance buried water supply and gas transmission pipeline system. The pipe fittings used in the wire mesh skeleton polyethylene composite pipe are polyethylene electromelting pipe fittings. When connecting, the inner heating body of the pipe is used to melt the outer plastic of the pipe and the inner plastic of the pipe, and the pipe and the pipe are reliably connected together.

2, PE pipe welding, PE pipe butt weld, the method provides the highest reliability and diameter range and pressure process: heating the end of the pipe, using a tool called contact pressure and temperature defined under the "mirror". The ends are quickly contacted and kept under pressure during cooling.

PE pipe has medium density polyethylene pipe and high density polyethylene pipe. According to the wall thickness is divided into SDR11 and SDR17.6 series. The former is suitable for transporting gaseous artificial gas, natural gas, liquefied petroleum gas, the latter is mainly used for transporting natural gas. Compared with the steel pipe, the construction process is simple, has a certain flexibility, and the more important is that it is not used as anti-corrosion treatment, which will save a lot of processes. The disadvantage is that the equipment is not as good as the steel pipe, the construction pays special attention to the safe distance of thermal heating, and can not be exposed to the sunlight in the air, and is sensitive to chemicals to prevent the leakage of sewage pipes.