... -2008 1. Material: gray cast iron 2. Application: B B type cast iron pipe fittings for drainage GB/T12772-2008cast iron ... drainage pipe and fittings, soil pipes, cip, pipe fittings, coupling, astm a888, en877, astm a74, bs 437Hubless/socketless Cast Iron ... paint.Packing: Steel cases.3) Couplings. we have ASTM A564 TYPE, TYPE B, E, CHA, for EN877 standardsMaterial: 300 series Stainless steel ...