The company's stock in Japan CROWN gas regulator, precision regulator, pressure reducer, mixers, flow meters, gas bottle automatic switching device, suitable for: general industry, the semiconductor industry, medical, application of gas medium include: Ar Argon He Helium Oxygen O2 Hydrogen H2 Nitrogen N2 methane CH2 carbon dioxide CO2 methane (CH4) liquid petroleum gas LPG and so on. Series of high-purity gas pressure reducer, such as R35, R25 series of high-purity gas pressure reducer, R20 series of high-purity gas pressure reducer