... sanitary Drain, Waste, and Vent, sewer drainage applications. Compared with plastic(PVC) pipes, cast iron pipe is more soild and ... it has become architects' first choice for drainage inside the buildings.1) For hubless pipes: Standard: DIN/ EN877, ISO6594; ASTM ... spigot caps, reducer, traps, access pieces with circle door, access pipeces with rectangular door, access pieces with manual door, etc. ...