... sanitary Drain, Waste, and Vent, sewer drainage applications. Compared with plastic(PVC) pipes, cast iron pipe is more durable. ... caps, reducer, traps, access pieces with circle door, access pipeces with rectangular door, access pieces with manual door, etc.Surface finish: With epoxy resin or powder ... we have been exporting to the west coast of America with more than 150 items and sizes, such as BEND, ...