... uses asburied drainage, sewage pipe Specification: 110mm~1200mmColor: white & blackLength: 6mplastic corrugated pipe1.Material:PVC-U;2.Use: Municipal ... , meanwhile, still have easy5.installation, small resistance, low cost, strong corrosion resistance etc, and its6.performance ... ISO,OHSAS180013..Easy to install4. impact strength under low temperature5.resistance to crack under stress6.Easy for ...