PPR Fitting,PPR Insert,Brass Insert,Brass fitting. 1.Materials: CW617N, C37710 and CuZn40Pb2 2.Forged brass PPR insert PPR fitting,PPR insert,brass insert,brass fitting,ppr coupling Specifications:Materials: CW617N, ... C37710 and CuZn40Pb2 Forged brass PPR insert Thread standards ...