Remote control gear with transmission tubing for manual operation; leading-trough bearings with crown gear units slewable, watertight
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/1980
Remote control gear with transmission tube for manual operation – Leading-through bearing with slewable crown gear units, watertight
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/2017
