... asburied drainage, sewage pipe Specification: 110mm~1200mmColor: white & blackLength: 6mplastic corrugated pipe1.Material:PVC-U;2.Use: Municipal engineering and construction ... , is widely used in the undergroundembedded pipe.Plastic double-wall corrugated pipe1,Lift time:50years2.ISO,OHSAS180013..Easy to install4. impact ...