06
Cable and wires (not for electrical purposes); pipes and
tubes of metal; metal pipe connections and metal collars;
wall entries; pipes; pipe fittings; sewage pipes; drainage
pipes; water conduits; fittings for pipes; holders for
pipes; pipe glands; pipes; pipe muffs; penstock pipes and
ducting; ducts for central heating installations; all the
aforesaid goods of metal
17
Wall ducts for cables, lines, pipes, ground leads and the
like, in particular of gas-tight and water-tight
construction; additional parts for connection to wall ducts,
namely flexible feed-through tubes and feed-through pipes,
shrink tubes, connection couplings, sealing cups, cable,
line and pipe clips; mastic sealants (term too vague in the
opinion of the International Bureau – Rule 13(2)(b) of the
Common Regulations); packing, stopping and insulating
materials; annular gaskets; all the aforesaid goods of
plastic
19
Lines for ventilating apparatus, air conditioning
installations, above-ground drainage systems, and geothermal
heat exchanging systems (term too vague in the opinion of
the International Bureau – Rule 13(2)(b) of the Common
Regulations); household gutter pipes; waste pipes; drainage
pipes; pre-fabricated construction elements for structural
and civil engineering and sewer construction; all the
aforesaid goods not of metal or plastic
20
Threaded parts, screws and bolts, all made of plastic