... is moved construction in whole, connected by high-pressure soft pipe, adopt liquid oxygen pump, inner-compress flow, can produce high ... user needn’t cooling water and needn’t invest the connecting pipe and plant foundation. Valve of Purifier and rectification column adopts ... set , Liquid Oxygen Pump 1 set,Filling Unit 1 set,Connecting pipe 1 set,Low-voltage Distributor 1 set,Molecular sieve 1 ...