Pressure Reducing ValveChina Helium He Gas Regulator with Two Pressure Gauge & Flowmeter Sam Won Swr-070 South Korean Type Style 25L/Min 250bar 25MPa 10kgf/Cm2 W22-14, Find details about China Reducer, Pressure Reducer from Helium He Gas Regulator with Two Pressure Gauge & Flowmeter Sam Won Swr-070 South Korean Type Style 25L/Min 250bar 25MPa 10kgf/Cm2 W22-14