suction and sweeping machines; self-propelled and motorized commercial suction and sweeping machines; and parts and fittings for all the aforesaid machines, namely, brushes, brush rolls, disc brushes, dust collection bags made of plastics or textile material, suction fans, engines, hydraulic motors, drives and controllers, hydraulic drives, hydraulic adjustable cylinders, sweeping heads, spray nozzles, insertable snowploughs, detachable seats and suction hoses (all parts to be for the suction and sweeping machines)