1
Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; Unprocessed artificial resins, unprocessed plastics; All the aforesaid goods other than in the field of industrial heat insulation and structural fire protection
17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; Plastics in extruded form for use in manufacture; Packing and stopping material; Flexible pipes not of metal; Semi-finished goods for brake linings; Gaskets; Vulcanite (ebonite); Rubber, raw or semi-worked; Threads of rubber not for use in textile; Shock-absorbing buffers of rubber; Insulators for railway tracks; Rubber material for recapping tyres; All the aforesaid goods other than in the field of industrial heat insulation and structural fire protection
19
Building materials (non-metallic); Railway sleepers, not of metal; Crash barriers, not of metal, for roads; Road coating materials; All the aforesaid goods other than in the field of industrial heat insulation and structural fire protection
42
Scientific and technological services and research and design relating thereto; Industrial analysis and research services; Chemical research; Technical research; Research physics; All the aforesaid services other than in the field of industrial heat insulation and structural fire protection