We could supply 99.9% carbon monoxide CO gas for fish. 1. Gas ... 2. Charging pressure: 12.5MPa 99.9% carbon monoxide CO gas for fish and other gas specification: Product ... ≥99.996GB/8979-96CylinderChemical industry, glasses, smelting, protectionCarbon Monoxide ≥99.9Q/DY01-98CylinderChemical industry, medical, analysisHigh Purity ... /1374CylinderSterilizing GasC2H4O 100%WL2001/1374Cylinder Carbon Monoxide