... /cm2), which makes the product quality more liable.7. The transported air is clean and without any oil-dust, as the ... . Widely used in many fields, especially in gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, oxygen generation, etc. 14 ... ValvePressure GaugeCommon BaseBlower PulleyMotor PulleyV-belt CoverV-beltLubricating oil waste water treatment pump