Zhejiang Dongsheng Industrial Co. Ltd. was established in 1987, founded more than twenty years, always adhere to the "quality policy of continuous improvement and optimization of quality", with excellent product quality and service is renowned in china. The company mainly produces all kinds of valves, pipe fittings, sanitary wareproducts, exported to Europe and the United States, the Middle East and other regions. The company passed the ISO9001, CE, CSA, WRAS, NSF, CUPC, SABS system an