1.BPQ series Ultrasonic jet mill used chemical 2.heat-sensitive materials 3.super micro 4.easy ... pa 1.Operating principle BPQ series Ultrasonic jet mill used chemical. The pressure gas by feeding the ejector nozzle to ... machine is widely used in pharmaceuticals, traditional Chinese medicine, pesticide, chemical, metallurgical and other industrial materials ultrafine grinding, such as carbendazim ...