... granularityin milling of ores, building materials, metallurgy and chemical industry. Gyro drying machinery has a ... used for drying many kinds of materials and with convenient and reliable operation; Therefore, it has been ... , Iran, Pakistan, Australia, the Middle East and other countries and areas. Main Technical Parameters of the Rotary dryer ... Dryer, rotary dryer for sand, wood chips,gypsum, sawdust