ELECTRICAL EQUIPMENT, USUALLY NOT OF A VOLTAGE EXCEEDING 600 VOLTS; BUILDING MATERIALS AND EQUIPMENT; FIRE FIGHTING AND FIRE PREVENTION EQUIPMENT; CHEMICALS, SUCH AS DETERGENTS, FLARES, FLAMMABLE LIQUIDS, SAFETY MATCHES, PHOTOGRAPHIC FILM, AND SIMILAR CHEMICALS; HYDRAULIC EQUIPMENT; EQUIPMENT FOR THE HANDLING AND UTILIZATION OF HAZARDOUS LIQUIDS AND GASES, INCLUDING HEATERS; AUTOMOTIVE EQUIPMENT; EQUIPMENT AND SYSTEMS FOR PROTECTION AGAINST BURGLARY AND THEFT; SAFETY APPLIANCES; AND AIR DUCTS