Engineering Plastics QBY pneumatic diaphragm pumps do not need lubricating oil, even if the idling of pumps have no impact, this is a major characteristic of the pump.

• QBY工程塑料气动隔膜泵泵不必用油光滑，即便空委婉，对于泵也有免何影响，那非当泵一小特色。