9 CABINETS THAT ARE AIR-CONDITIONED, EARTHQUAKE, VANDALISM, AND EXPLOSION PROOF, NAMELY, SWITCHGEAR CABINETS MADE OF METAL AND PLASTIC, WHICH ARE COMPOSED OF RACKS, HOUSINGS AND DECKS, PREFERABLY FOR THE ELECTRONICS INDUSTRY, FOR ELECTRONICS, COMPUTERS, COMMUNICATIONS EQUIPMENT, AND WHICH MAY BE USED IN CONJUNCTION WITH SUPPORTING ARM SYSTEMS; ASSEMBLY CARRIERS, NAMELY CABINETS, HOUSINGS AND BRACKETS FOR PLUG-IN ASSEMBLIES PROVIDED WITH ELECTRIC CIRCUITS; CABLING AIDS IN THE NATURE OF CABLE COLLECTOR RAILS, CABLE INSERTS, AND TERMINALS FORMED FROM METAL AND NON-METALLIC MATERIAL SOLD AS A UNIT WITH THE SWITCHGEAR CABINETS; ELECTRICAL CONTACTS, POWER LINES, CONTACT MAKERS AND LETTERING BARS