6
Steel fibres; cut pieces of metal wires for the reinforcement of mixtures, materials and products of concrete; reinforcing rods and bars of metal for use in concrete; steel reinforcement for use in the construction of concrete floors, concrete walls, concrete pipes, sprayed concrete, pre-cast concrete
17
Raw fibres of carbon, other than for textile use; synthetic fibres, other than for textile use; artificial fibres, fabrics, felts, and threads, none being textile or for textile use; polymer resin fibres [other than for use in textiles]; fibres for use in concrete and cementitious blends; fibres for use in concrete and cementitious blends to give flexural and tensile properties
19
Fibres for use in building materials; fibres for use in building materials to give flexural and tensile properties; aggregate materials for use in concrete; concrete; reinforced concrete; mortar, lime, ready-mixed concrete and ready-mixed mortar; concrete balancing mortar; concrete building materials; ready to use concrete; ready to use cement; cement, asbestos cements, fibre cements, fire retardant cements, refractory cements, blended cements, cement base mixture for use in building, cement based coatings and/or materials, cement mortar for use in construction, cementitious materials and preparations; plaster; decorative building products; decorative building products made of cementitious materials; pre-cast concrete products; concrete blocks and pipes, pre-cast concrete pipes; building materials of mineral fibres