... , smooth operation, 4.high efficiency and energy saving. 5.the last price Specification:1.Sewage treatment, aquaculture, pneumatic conveying, ... fan in appearance, compact structure, excellent manufacture, for the present domestic energy-conserving high-efficient new product gear intoat ... 5kw yuan /setmotorHER200L 22kw yuan/setmotorHER200L 30kw yuan /setmotor fans/fan motor/aeration fan/ventilation ...