... B type cast iron pipe fittings for drainage GB/T12772-2008cast iron drainage pipe and fittings, soil pipes, cip, pipe fittings, coupling, ... system, widely used in sanitary Drain, Waste, and Vent, sewer drainage applications. Compared with plastic(PVC) pipes, cast iron pipe is more ... . we have ASTM A564 TYPE, TYPE B, E, CHA, for EN877 standardsMaterial: 300 series Stainless steel and EPDM rubber.Packing ...