... 3. Corrosion resistance 4. match with circulating cooling SHZ-95B High Efficient Big Power Water Ring Vacuum Pump SHZ-95B Multifunction Water ... view of this pump:it is non-pollution, high power, low noise,easy and flexible. This pump is widely used for ... pump is corrosion-resistant, non-polluting, stable operation, long life. Main engine has polypropylene and stainless steel two models. The control ...