Purification Equipment Research Institute of CSIC is located in Handan, Hebei Province. It is a scientific research organization established in 1966. It is the best and the largest special gas manufacturer in China. It has own intellectual property and products NF3，WF6，HCl，C4F6，C4F8，C2F6，SiF4, C3F8, HF, CO2, SiH4, 1.2%He/N2, 15% Xe/N2, 1.25%Kr/Ne, 3.5%Ar/10ppmXe/Ne, (1%-20%)PH3/H2, 30%O2/He, 10%CH4/Ar, 1%PH3/N2, 1%O2/Ar, 2.7%C2H4/He, 4%H2/N2, 5%NF3/N2, 4%H2/Ne, 4.5%HCl/0.9%H2/Ne, He, Ne, Xe, Kr, Ne, N2, He, O2, Ar. Peric’s products have been widely applied to various fields such as microelectronic, power plant, energy, metallurgy, chemical research and meteorology industry etc. Products have been sold well to over 30 provinces, cities and autonomous regions and exported to above 30 countries.