1),Groove fittings and couplings 2),Ductile iron 3),FM/UL/ISO approved 4), ... epoxy Package:..1. All sizes available.2. Ductile cast iron.3.Reducing coupling.4.Finish:epoxy powder, galvanized, ... terms: TT or L/C.8.Package: Cartons and pallets.9.Exported abroad directly from our own factories ... capacity50000 pieces per month FM/UL ductile cast iron grooved reducing coupling and other grooved fittings