... industry,vacuum drying,filter ,steep,coating,jointing,smelt and lab equipment field. It could be used separately or combined with booster pumps ... ,diffusion pump,molecular pump or other high vacuum.widely used in election industry,vacuum drying,filter ,steep,coating ... )1616/625/12/625/12/640/2540/25 2xz-8 Rotary Vane Vacuum Pump