Gass Parker served in the Institute of higher education for a long time, providing them with one-stop gas supply services, including high purity EP class gas cabinet (GC), gas distribution cabinet (VMB), and laboratory BA gas cylinder frame (GR), gas distribution disk (VMP), and high pressure (HP) or ultra high pressure (UHP) gas supply systems, and also needles. The actual characteristics of the industry, tailored to develop a dangerous gas monitoring and management system (GDS), provide a guarantee for the safety of the life of the national senior personnel, and provide an indispensable condition for the safety of the experiment, and the corresponding development of the exhaust gas treatment system of the above production equipment to ensure the exhaust gas of the factory. Release mark