... high-pressure soft pipe, adopt liquid oxygen pump, inner-compress flow, can produce high quality medical oxygen. It have small volume, occupied small ... column,has minimal cooling lost,Shorten starting time. This Oxygen producing equipment exported to Iraq in 2009 Scope of supply ... set,Rectification Column 1 set ,Refrigerator 1 set , Liquid Oxygen Pump 1 set,Filling Unit 1 set,Connecting pipe 1 ...