... Single/multi 4. reasonable price 5.PPR union mould We are a Chinese factory.We ... make all kinds of plastic injection pipe fitting PPR union connector.In China, we are the leader ... .2. We can provide various of single/double Union valves, check valves, membrane valves, bottom valves, ... moulds like elbow, coupling, tee, reduce, cap, union, flange, flexible connector, water supply and sewerage pipe ...