Hunan Tongwei New Material Technology Co., Ltd, established in 2005, is located in the beautiful natural scenery of Hunan Province, mainly engaged in the production of various materials of plastic valves and pipe fittings. The materials of production we have are  UPVC, CPVC, ABS, PPR, HDPE, PPH, PVDF, PFA. We produce all the size of productions around the world such as DIN/ANSI/SCH80/JIS/CNS/BS/NPT/BSPT.As a professional industrial pipe fi...