... standard We are expert in procucing plastic valve and pipe fitting moulds.We have made plastic union tee moulds many times .We ... clear communications.2. We can provide various of single/double Union valves, check valves, membrane valves, bottom valves, gate valves ... can provide moulds like elbow, coupling, tee, reduce, cap, union, flange, flexible connector, water supply and sewerage pipe fitting moulds ...