Huadong blower co., ltd is specialized in manufacturing roots blower also vacuum pumps . Capacity: 0.4-824.6 m3/min Pressure: 0-98kpa Application: cement , aquaculture, waste water treatment, pneumatic conveying, paper printing plant, food processing, furnaces etc. If you are interested in our blower , please advise us your requirement, so that we can select the suitable blower model and submit quotation accordingly. 1) pls advise the capacity(m3/min) 850*500*570