HDPE water supply pipe is a solid-wall pipe of pure PE, and the inner and outer pipe walls are smooth and flat. PE drainage pipes have many appearance shapes, such as solid wall drainage pipes with the same appearance as PE water supply pipes, common PE double-wall corrugated pipes, PE steel belt reinforced spiral corrugated pipes, PE plastic steel winding pipes, PE hollow winding pipes, carat pipes , inner rib tube, etc. To distinguish the PE solid wall drainage pipe and the PE water supply pipe, the marking on the outer wall can be seen, and other types of drainage pipes can be distinguished from the appearance at a glance.
