... used in sanitary Drain, Waste, and Vent, sewer drainage applications. Compared with plastic(PVC) pipes, cast iron pipe is more durable. ... completely recycled, it has become architects' first choice for drainage inside the building.1) For no-hub pipe: Standard: EN877, ISO6594; ASTM ... sizes, such as BEND, DOUBLE BEND, WYE, DOUBLE WYE, SAN TEE, VENT TRAP, etc.Surface finish: Anti-rust paint or no ...