... in sanitary Drain, Waste, and Vent, sewer drainage applications. Compared with plastic(PVC) pipes, cast iron pipe is more durable. Furthemore, cast iron pipe ... architects' first choice for drainage inside the building.1) For no-hub pipe: Standard: EN877, ISO6594; ASTM A 888, CISPI301 ... TEE, VENT TRAP, etc.Surface finish: Anti-rust paint or no-shining paint.Packing: Steel cases.3) Couplings. we have ...