17
Refractory coverings; mica; mica coverings; mica safety
curtains; weatherstripping, packing and insulating
materials; compositions for preventing the radiation of
heat; non-metallic flexible pipes; thermal insulating
materials, insulating fabrics; insulating tapes; metal foils
for insulation; fiberglass for insulation; glass wool for
insulation; artificial or synthetic resins (semi-finished
products)
19
Non-metallic building materials; natural, artificial and
machined stones; marble; sandstone; plaster and gravel;
earth for bricks; refractory materials; refractory
compositions and materials for industrial use; refractory
cement; refractory concrete; refractory mortar; firestone;
refractory brick; refractory clay for furnaces and furnace
coverings, in the form of unprocessed or partly shaped
mineral material; refractory materials for applying with a
gun; refractory plasterwork; refractory materials for
building; refractory materials for lining; refractory
compositions for caulking, covering or repairing high
temperature apparatus; refractory compositions for caulking,
covering or repairing furnaces; refractory compositions for
furnaces and blast furnaces; non-metallic rigid pipes for
building; sandstone or cement pipes; non-metallic chimneys;
refractory ceramic materials for building; faience (tiles);
wall tiles and non-metallic pavings; non-metallic
transportable buildings