3r ريمون طاحونة ريمون مطحنة المورد ريمون مطحنة طحن. الكرة مطحنة * عملية. Mill (grinding) . A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting .. or regrind mills, are a more efficient means of grinding material at smaller particle sizes, and can be used after ball mills in a grinding process.