B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
B02C4/00—Crushing or disintegrating by roller mills
B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
B02C4/04—Crushing or disintegrating by roller mills with two or more rollers specially adapted for milling paste-like material, e.g. paint, chocolate, colloids