... saving blower 4high rising pressure pump 5.long life electric machinery blower 1. Low noise, due to the helical suction ... especially in gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, oxygen generation, etc. 14.Oil tank: after milling they ... ValvePressure GaugeCommon BaseBlower PulleyMotor PulleyV-belt CoverV-beltLubricating oil electric machinery blower