a inventor of tidal mills in 7ht century
a inventor of tidal mills in 7ht century: ...ated across a suitable tidal .manufacturers of ball mills These mills are of a special design and described on special request by all Ball Mill Manufacturers. Types of Grinding Mill Manufactured The different types of grinding mills are based on the different types of tumbling media that can be used: steel rods (rod mills), steel balls (ball mills ...