HCH Ultra fine Grinding Mill for Mineral Powder Production07/08/2020· HCH Ultra fine Grinding Mill for Mineral Powder Production 2020 08 07 16 08 HCM HCH ultra fine grinding mill is designed for high throughput and fine pwoder The product fineness can reach 400 3000 mesh it is a new ultrafine grinding mill integrating grinding grading conveying secondary powder selection and finished product packaging in one unit HCH series ultra fine vertical