... limestone, coal, slag, clay and other materials. The aircraft mainly by the hot sale mining drier, Jan plate, transmission, seals, and other support ... , it can keep producing and packing without stop .8.Without the big and small gears,it work with riding wheel.9 ... operation .It is easy to adjust the date of the water content of the product. Rotary drum drier for sand Typerotation speed(r/min ...