... standards as ISO 6594 , ASTM A888 , EN 877 etc, Hubless Cast Iron Soil Pipes has been widely used in the building industry ... in sanitary Drain, Waste, and Vent, sewer drainage applications. Compared with plastic(PVC) pipes, cast iron pipe is more soild and durable. Furthemore, cast iron pipe has ... : Steel cases.3) Couplings. 301 seriesMaterial: Stainless steel. Packing: Cartons. cast iron soil pipe