1. material: grey iron 2. strictly produced to EN877, ISO6594, ASTM A888. ... , ASTM A888 , EN 877 etc, Hubless Cast Iron Soil Pipes has been widely used in the building industry ... plastic(PVC) pipes, cast iron pipe is more soild and durable. Furthemore, cast iron pipe has excellent noise suppression ... , DOUBLE BEND, WYE, DOUBLE WYE, SAN TEE, VENT TRAP, etc. Surface finish: Anti-rust paint or no-shining ...