1)110mm~1200mm 2)Color: white & black,Length: 6m 3)Use: Municipal engineering and construction of buried drainage,sewage pipe 1.Material:PVC-U;2.Use: Municipal engineering and construction of buried drainage, sewage pipe.3.Superiority:Reasonable hollow ring structure design, have qualitative light,4.intensity .High toughness and good characteristic, meanwhile, still have easy5.installation, small ...