塑料污水管与铸铁污水管相比有极大的优越性,塑料污水管替代铸铁污水管是今后发展方向。应用塑料污水管可节约生产能源,减轻制品重量,塑料管重量仅为铸铁管的1/6～1/12,节约运力,提高施工速度,降低工程综合造价30%,具有显著的社会、环境、经济效益。塑料污水管耐腐蚀、不锈蚀,管壁平整光 Plastic sewer pipe has great advantages compared with cast iron sewer pipe. Plastic sewer pipe instead of cast iron sewer pipe is the future development direction. The use of plastic sewer pipes can save energy and reduce the weight of products. The plastic pipe weighs only 1/6 to 1/12 of the cast iron pipes, saves transportation capacity, increases the speed of construction, reduces the overall construction cost by 30%, and has significant social, environmental, and environmental benefits. Economic benefits. Plastic sewer pipe is corrosion-resistant, non-corrosive, flat wall light