The machines factory says: "With a predominant use of hard grains we recommend because of the greater resistance to wear our Grain Crushers 'universal' with Hartstoffwalzen. This press rolls, we'll issue a special Hartstofflegierung ago - they are therefore the highly abrasive Hartgetreide copes effortlessly. They also can, in contrast to previously used, hard coated rollers, which are frequently sharpened. " |