MATERIALS-HANDLING EQUIPMENT ACTUATED HORIZONTALLY OR FOR LIFTING PURPOSES MANUALLY OR BY OR WITH THE AID OF MOUNTED POWER UNITS (INCLUDING MECHANICAL OR HYDRAULIC EQUIPMENT, GASOLINE ENGINES, ELECTRIC MOTORS, OR COMBINATION GASOLINE ENGINE-ELECTRIC GENERATOR UNITS)-NAMELY, LIFT TRUCKS, LIFTING DOLLIES, LIFTING FORK TRUCKS, LIFTING FORK AND TILT TRUCKS, LIFTING INDUSTRIAL POWER TRUCKS, LIFTERS, STACKERS, PORTABLE ELEVATORS AND DUMBWAITERS, PORTABLE CRANES, AUXILIARY CRANES, HOISTS, PILING MACHINES, AND TIERING MACHINES, TOGETHER WITH ACCESSORIES THERETO AND PARTS THEREFOR-NAMELY, CHAIN CONTROLS, TURN-TABLES, CANTILEVER JACKS, WINCHES, HIGHSPEED DRIVES, HINGES FOR HIGH-STACKING MACHINES, LADDERS FOR PERMANENT ATTACHMENT TO HIGH-STACKING MACHINES, HYDRAULIC RELEASES, SPRING BALANCE CYLINDERS, BROKEN CABLE SAFETY DEVICES, ROLLERS, CASTERS, FRAME SPLICES, CABLE CONTROL FLOOR STOPS, PLATFORM RETAINING BARS FOR STACKING MACHINES, DETACHABLE SKIDS, BARREL ROLLS, REMOVABLE ROLLERS, ROLLER PLATFORMS