... communications.2. We can provide various of single/double Union valves, check valves, membrane valves, bottom valves, ... of ABS, U-PVC, C-PVC, PP-R, PE, PE-RT, POM and other material.3. We can provide ... pipe fitting of elbow, coupling, tee, reduce, cap, union, flange, flexible connector, water supply and sewerage pipe ... of ABS, U-PVC, C-PVC, PP-R, PE, PE-RT, POM and other material. Form as thread, socket ...