Since 1982, according to requirement of domestic production of electron gas, Guangming Research & Design Institute has developed serial special gas tube and valve products, which have been applied by Chinese Academy of Sciences as well as several hundred units in electromechanical, spaceflight and petrochemical. Our products passed military level technology production certification. Some are first like products in China and have achieved national patent, especially applicable to hyperpure, flammability, explosive, poisonous, high corrosivity and radioactive media. They can be applied in microelectronic industry, remote sensing laser, light guide communications, metal organic and other high-tech field, as well as occasions demanding high seal requirement, such as petroleum, chemistry, medicine, food and environment protection field, and all kinds of instruments and instrument experimental device.

Main serial products:
1. GQ serial membrane air bottle valve, GJ serial membrane break valve, BJ serial bellows break valve, BJL serial bellows throttle valve, ZH serial check valve, AZ serial spring safety valve, TW serial filling mini-flow regulating valve.
2. TQZ serial purging device (air bottle cabinet)
3. TY serial erosion resistant metal membrane reductor