Compressors in class 7; rotary vane, rotary screw and piston type air compressors in class 7; compressor pumps being parts of air compressors in class 7; air dryers, aftercoolers, filters, all being machines or parts of machines in class 7; heat exchangers in class 7 used with air compressors in this class

Maintenance, repair and reconditioning services performed in relation to air compressors and ancillary equipment; installation and servicing of air compressors, dryers, aftercoolers, filters and air-line systems, including systems for supply of compressed air to machines and tools