Zhejiang Yongsheng Instrumentation Co., Ltd has been officially changed to Zhejiang Yongsheng Technology Co., Ltd. since July 1st 2015 . It is a professional corporation specializing in developing and manufacturing instruments of industrial control valves. Our company is a state approved A Class manufacturer of pressure pipe components; National Support for High-tech Enterprise; State Torch Program Units; and is superior supplier of Sinopec, CNPC, CNOOC and other important national oil and chemical enterprise.Our company is located in Lushan Hi-tech Park - in the southern part of Hangzhou where with honor of Natural Heaven. The company is covered with more than 30,000 square meter area; we have two factories: one with an annual output of 5000 tons of resin sand cast and another produces 20,000 sets of valves. We have more than 300 senior and middle-class technicians. Our company has many patent products including: new type of intelligent control valve, three eccentric butterfly valve