Zhe Jiang Zhengzhou National Hi-Tech Enterprises ------ Valve Manufacturing Co., Ltd. was established in 1995, is a product design, manufacturing, sales and service in one of the modern enterprise; production of various types of valves DN40 ~ DN4500 and hydraulic control actuators sold in China and around the world, welcomed by the majority of users and trust. Strong technical force, a unit of national torch plan project commitments; subordinate "is hydraulic control valve Island R & D Center" was identified as high-tech R & D center in Zhejiang Province, in intelligence, fluid control, frequency conversion, explosion, desulfurization, etc. a series of valves and control technology has achieved fruitful research results, and has 12 self-developed technology has obtained national patent. The company has strong ability to transform scientific and technological achievements, has been successfully transformed into intelligent slow close hydraulic control valve, 0.2 seconds to close the valve, intelligent frequency control valve, regulating valve and other products based Extraction, were confirmed by Zhejiang Science and Technology Department expert team to achieve the leading domestic level. Island companies are also gradually shift from labor-intensive to technology-intensive, growth for the township of valve one of the leading technology development.