... oil-dust, as the blower sealing structure is reasonable, oil can not enter the chassis, thus the air is very clean ... gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, oxygen generation, etc. 14.Oil tank: after milling they are all ... oil leakage.15. Bearing:Our bearing are doulbe-line bearing, can adjust the concentricity, and they are all strong fighting force ...