Tender For supply of medical gas refilling f f - medical oxygen a type cylinder capacity 1 cubic meter per cylinder , medical oxygen b type cylinder capacity 1.5 cubic meter per cylinder , medical oxygen d type cylinder jumbo capacity 7 cubic meter per cylinder , medical nitrousoxide a type cylinder capacity 2.5 kg per cylinder , medical nitrousoxide d type cylinder jumbo capacity 30 kg per cylinder , medical co2 ip d type cylinder