Helium, Xenon, Argon manufacturer / supplier in China, offering Great Quality Industrial Grade 5n Helium Gas with Filling Pressure 200bar, 99.999 High Purity Krypton Gas with 10m3 Filled in 50L Cylinder, 99.999% High Purity Krypton Kr Gas with 6m3 Filled in 40L Cylinder and so on.