... kinds of plastic injection pipe fitting PPR union connector.In China, we are the leader of making ... is the cap sample.The following is the thread sample.The followin is the socket sample.Go ... , coupling, tee, reduce, cap, union, flange, flexible connector, water supply and sewerage pipe fitting moulds, etc. made ... PE, PE-RT, POM and other material. Form as thread, socket, male, female, etc.4. We devote to ...