Valves for fluid control systems, from simple shut-off valve to a variety of highly complex automatic control valves used in the system, which is quite wide varieties and specifications. The valve can be used to control the flow of air, water, steam, corrosive media, mud, oil, liquid metals and radioactive fluids and other types of media. Valve according to the material is also divided into cast iron valves valve company, cast steel valves, stainless steel valves (201,304,316, etc.), chromium-molybdenum steel valve, chromium molybdenum vanadium steel valves lofty valve, dual-phase steel valves, plastic valves, non-standard set valve system and other materials. Control valve can be a variety of drive, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic move, electromagnetic hydraulic, electro hydraulic, pneumatic and hydraulic, spur gears, bevel gear drive and the like; in pressure, temperature or the role of other forms of sensor signals, according to predetermined requirements and Shanghai Valve action, or do not rely on the sensor signal and a simple on or off, the valve is being driven or automatic mechanism to open and close member for lifting, sliding, rotating pendulum or rotary motion, thus changing the size of its flow area to achieve its control function. _ _ Guangzhou lofty Valve valve valve out of Hong Kong, the Hong Kong valve provided by the Dongguan Science and Technology Co., Ltd. Valve Co., Ltd., Dongguan Ming Kong (www.gdmgfm.com) strong, credible, butterfly and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead valve and you work out of Hong Kong into the brilliant, for a better future!