Nuzhuo Water-Cooled 4-Stage Oxygen Compressor Oil-Free Medical and Industrial Use

NUZHUO Water-Cooled 4-Stage Oxygen Compressor  Oil-Free Medical And Industrial Use1.Totally 100% oil free,no need oil 2.Suitable for oxygen,hydrogen,nitrogen,helium,argon,cng and special gas 3.No pollution ,keep same purity to inlet gas 4.Reliable and top quality,comparable with usa rix brand. 5.Top cost performance,low maintenance cost and easy to be operational, only need to be change piston ring 6.4000 hours piston ring working life,1500-2000 hours working life for final stage ring Product Description Product NameOil Free Gas CompressorPower Range