... 2.high efficiency 3energy saving blower machine 4high rising pressure pump 5.stable operation, long life 1. Low noise, due ... in many fields, especially in gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, oxygen generation, etc. 14.Oil tank: ... GaugeCommon BaseBlower PulleyMotor PulleyV-belt CoverV-beltLubricating oil waste water treatment pump