The high-density polyethylene pipe is a new type of tubing. 雨水管所采用的高密度聚乙烯管是一种新型管材。
The profiles are welded by HDPE extrudant at the profile edges which is overlapped by a winding and welding machine to form the pipe. 成型的管材呈螺旋直肋结构,聚乙烯管壁外表面有等间距螺旋环绕的肋片加强。