Cardiac surgery gas, medical equipment, heart operation equipment the main gas components:CO2/O2,CO2/N2,O2/N2,CO2+O2/N2 Cardiac surgery gas, medical equipment, heart operation equipmentthe main gas components:CO2/O2,CO2/N2,O2/N2,CO2+O2/N2payment way:30% T/T payment in advanceDelivery time:30~45days Cardiac surgery gas