The system adopts sealed internal cycling mode allocated according to the classification of cleanliness area with good mixing effect.The tank bodyis made of SUS304 or 316L stainless steel. The automatic spraying and cleaning nozzle is equipped inside the tank body,and titanium stick filter and 0.2μm respirator etc. Devices are adopted to ensure the production process is in accordance with the requirements of GMP quality standard.System allocation can be designed according to customer's requirements to production.