Zhejiang Taizhou Triunion Co., Ltd. As a member of Hongtu Group, is a union corporation, which specilize in producing & selling High Quality PVC Fittings, PVC Butterfly Valves, FRPP Ball Valve, PVDF Check Valve, PE Irrigation Fittings, PP-H Fittings, PP Compression Fittings, HDPE Fittin...View More