Helium Gas Cylinder, Dewar Tank, Liquid Argon manufacturer / supplier in China, offering Industrial Grade 99.999% Ultra-Pure N2 Gas Cylinder with Welding, Medical & Industrial Stainless Steel Cryogenic Liquid Tank (10-50m³ , O2/CO2), CE-Certified 13.4L Disposable 30 Balloons Helium Tank and so on.