... be used for keep fresh of fish. 99.5% industrial CO gas and other gas specification: Product nameTechnical index(%) StandardUnitApplicationIndustrial ... CompositionMixing ScopeHeN28-55%HeCO22-16%HeH2 0.25-0.45% CO 2-6%CO2 2-16% N2 8-25%HeCO ... CO2 90%WL2001/1374CylinderLeather, paper, coins, scrap items and other goods; transport warehouse, containers, stacking cargo space, medical equipment and empty ...