Donovan Commercial Industries Inc. P.O. Box 909, 400 Williams Mine Rd. Nortonville, KY. 42442 (270) 676-3192 Sales, (270) 676-3194 Fax Office hours: 0800am - 0400pm Central Time, Monday - Friday, Excluding Holidays Tech data 1  |  Tech data 2  |  Tech data 2b  |  Photos of Site  |  Items For Sale Item For Sale Email or Telephone the Sales Dept.. "Extruder" Manufactured by "National Rubber Machine" 50 HP Class II Div. 6 Explosiveproof Motor 23 to 1 Gear box 4.5" by 26" mix tube Will sell for best offer or possible trade