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