6 Common metals, unwrought or semi-wrought, and their alloys, laminated and cast building materials, rails of metal and other materials of metal for railway tracks, non-electric cables and wires of common metal, ironmongery, pipes and tubes of metal, balls of steel, nails and screws, junctions and small items of metal for pneumatic and hydraulic installations.
7 Mechanical valves for pneumatic and hydraulic installations; flow and pressure regulators for pneumatic and hydraulic installations; pneumatic, electro-pneumatic and hydraulic installations, filters for pneumatic and hydraulic installations, pneumatic and hydraulic actuators, oil-mist lubricators.
9 Scientific, nautical, surveying, electric, weighing, measuring, signalling, checking, life-saving apparatus and instruments; electrovalves; pneumatic stroke end sensors, electro-pneumatic sensors, electromechanical sensors.
11 Installations for heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
17 Gutta-percha caoutchouc, balata and substitutes; goods made of these materials; flexible pipes, not of metal; pipes and tubes, junctions and small items made of plastic for pneumatic and hydraulic installations.