ZHEJIANG DONSEN ENVIRONMENTAL TECHNOLOGY CO.,LTD..was established in 1996, which locates in NINGBO city where is developed and convenient. We are One of the most perfect manufacturer of the product system in China plastic pipe field. Donsen is specialized in the production are PP-R pipes and fittings, PP compression fittings, C-PVC fittings, U-PVC fittings, PE-RT floor heating pipes, plastic mould, and All kinds of plastic valves.,eg: PVC valve , PPR VALVE, C-PVC VALVE, BRLASS VALVE. Company covers area of more than 30000 square meters, has more than 300 employees and a group of outstanding technical backbone personnel management. There are special mold factory is responsible for the production of various kinds of pipe fittings mold.