37 INSTALLATION, MAINTENANCE, AND REPAIR OF INDUSTRIAL APPARATUS, ELECTRICAL AND ELECTRONIC DEVICES, EQUIPMENT, INSTRUMENTS, MACHINES, PLANTS, PRODUCTION FACILITIES, AND COMPONENT PARTS THEREFOR, NAMELY COMPRESSORS, HYDRAULIC PUMPS, MOTORS AND VALVES, HYDROMECHANICAL DRIVES, FIXED AND MOBILE CRANES, CONVEYORS AND CARGO AND BAGGAGE HANDLING MACHINES, INJECTION MOLDING MACHINES, ELECTRIC ARC AND OXYGEN STEEL MILLS, CONTINUOUS SLAB CASTING MILLS, IN LINE STRIP STEEL MILLS, HYDROGEN PLANTS, REFINERIES, ETHYLENE FURNACES, WATER TREATMENT PLANTS, WASTE TREATMENT PLANTS, INJECTION MOLDING MACHINES, AUTOMOBILE INFORMATION SYSTEMS SUCH AS NAVIGATION AND COMMUNICATION, AUTOMOBILE CONTROLS, AUTOMOBILE FUEL SYSTEM MANAGEMENT CONTROLS, AUTOMOBILE CLOCKS, AUTOMOBILE DAMPERS, AUTOMOBILE CLUTCHES, AUTOMOBILE TORQUE CONVERTORS, AUTOMOBILE SHOCK ABSORBERS; WAREHOUSE CONSTRUCTION AND REPAIR SERVICES