... Charging pressure: 12.5MPa 99.9% industrial Carbon monoxide gas for fish and other gas specification: Product nameTechnical index(%) ... ≥99.996GB/8979-96CylinderChemical industry, glasses, smelting, protectionCarbon Monoxide ≥99.9Q/DY01-98CylinderChemical industry, medical, analysisHigh Purity ... WL2001/1374CylinderSterilizing GasC2H4O 100%WL2001/1374Cylinder Carbon monoxide gas for fish