6
DUCTS MADE WHOLLY OR PRINCIPALLY OF METAL FOR TRUNKING PIPES AND CONDUITS FOR GASES OR LIQUIDS; PIPE FITTINGS, FASTENERS AND FASTENING DEVICES, NAMELY, BOLTS, NUTS, RIVETS, SCREWS, WASHERS, PLUGS, CLIPS, CLAMPS, MOUNTING PIECES, BRACKETS AND BANDS, ALL OF METAL AND ALL FOR DUCTS FOR TRUNKING PIPES OR CONDUITS FOR GASES OR LIQUIDS
9
ELECTRICAL, AUDIO, OPTICAL OR DATA SYSTEMS COMPRISED OF ELECTRICAL CONNECTION ADAPTORS, BRANCH BOXES, DISTRIBUTION BOXES, CONNECTORS, PLUGS, SOCKETS, MOUNTING AND CONNECTION BOXES AND FRAMES; ELECTRICAL TELECOMMUNICATION AND DATA CABLES; FIBER OPTICS; ELECTRICAL CABLE; TRUNKING ELECTRICAL POWER, TELECOMMUNICATIONS AND DATA CABLE COMPRISED OF HOUSINGS, DUCTS AND CONDUITS, SERVICE POLE CONNECTION UNITS; ELECTRICAL TRANSFORMERS; PARTS AND FITTINGS FOR ALL THE AFORESAID GOODS
17
NON-METAL SEALS FOR CABLES, PIPES AND CONDUITS; ELECTRICAL INSULATING MATERIAL, NAMELY TAPE AND NON-METAL MASSES; PIPES AND JUNCTIONS THEREFOR, NOT OF METAL; COMPRESSED AIR PIPE FITTINGS, NOT OF METAL; DUCTS MADE WHOLLY OR PRINCIPALLY OF PLASTICS FOR TRUNKING PIPES OR CONDUITS FOR GASES AND LIQUIDS; AND REPLACEMENT PARTS AND FITTINGS FOR ALL THE AFORESAID GOODS
20
NON-METAL MOUNTING PIECES, NAMELY, CLIPS, TIES, PLUGS, WALL-FIXING DEVICES, NAMELY HOOKS, NON-METAL SCREWS, CLAMPS, FASTENERS AND FASTENING DEVICES, NAMELY NUTS, BOLTS, RIVETS AND SCREWS AND REPLACEMENT PARTS AND FITTINGS FOR ALL THE AFORESAID GOODS