... T4844.2-1995CylinderElectronic industry, chemical industry, analysisPure Neon ≥99.99 CylinderMaking lamp, chemical industry, analysisPure Argon ≥99.99GB/T4842-95CylinderIndustry process, chemical, smelting ... , protectionPure Nitrogen≥99.996GB/8979-96CylinderChemical industry, glasses, smelting ...