23 HYDRAULIC MOTORS, HYDRAULIC ACTUATORS, HYDRAULIC PUMPS, HYDRAULIC CYLINDERS USED FOR OPERATING SYSTEMS FOR MACHINE TOOLS, PRESSES, AIRPLANES, CONSTRUCTION MACHINES, FACILITIES FOR IRON WORK, PRODUCTION MACHINES, FACILITIES FOR CHEMICAL PLANTS, CONVEYORS, SHIPS, ETC.; LUBRICATING MACHINES AND THEIR COMPONENTS-NAMELY, PUMPS, GREASE LOADERS, CENTRALIZED LUBRICATORS, AND PARTS THEREOF