Zhejiang Yong Sheng Technology Co., Ltd.is a control valve research and development, manufacturing, sales and service in one of the modern industrial enterprise.Established in 1997. YONGSHENG was the successfully listed on NEW OTCBB Market in December 2015, whose Stock Code is 834824.have many kinds of production, testing equipments, more than 260 sets in total, the annual output of 2 million units of industrial control valve manufacturing base and an annual output of 5000 tons of resin sand casting production base of each one, the existing production products have intelligent control valve, ball valve, butterfly valve, self operated control valve, another special valve (including the valve at the bottom, hydrophobic valve, Pipeline valve, shaft flow valve, anti surge valve), a total of more than 200 varieties. Products from the valve body casting, integrated processing, performance testing and other processes of running water, is China's most advanced industrial control valve research and development, manufacturing base.Yongsheng valve is widely applied in refining, petrochemical, coal chemical industry, LNG, power generation, bio pharmaceutical, fine chemical, empty, papermaking, metallurgy, sewage treatment and other projects, is a quality supplier of Sinopec,CNPC, PetroChina, CNOOC and other important national petroleum and chemical industry. 1.certified with Class A& Class B TS certificate. 2.new type intelligent control valve pass the appraisal of new products (7 national patents) 3.ISO9001:2008 4.acquire CE certification. 5.acquire ISO9001:2008\ISO14001:2004\OHSAS18001:2007. 6.acquire SIL3 Actuator and SIL3 Valve.