... -T3634-1995CylinderChemical industry, glasses, synthetic cut stone.Industrial carbon dioxide ≥99.8GB-6052-85CylinderChemical industry, welding, casting moldIndustrial helium ≥99GB/4844 ... industry, analysisPure Neon ≥99.99 CylinderMaking lamp, chemical industry, analysisPure Argon ≥99.99GB/T4842-95CylinderIndustry process, chemical, smelting, protectionPure Nitrogen≥99.996GB/8979-96CylinderChemical ...