17
Materials and products in polypropylene and PVC for industrial, technical, building, engineering, plumbing and environmental purposes, for drainage, geotechnical engineering, landfill and for gardening and landscape gardening; Semi-processed plastic materials, in the form of bands or sheets, for heat and sound insulation; Insulating materials, Insulators; Substances for insulating buildings against moisture; Insulating fabrics; Insulating paint; Fibreglass fabrics for insulation; Drainage tubes of plastic; Netting, mats and mattresses of fibre or artificial fabric, for drainage, soil consolidation and/or grassing of soil; Pipes of plastic for injections and structures and soil consolidation
19
Materials not made of metal for industrial, technical, building, engineering, plumbing and environmental purposes, for drainage, geotechnical engineering, landfill and for gardening and landscape gardening; Structures and constructions for drainage and soil consolidation; Frames, elements, meshing, mats and mattresses of fibre or natural fabric and/or artificial fabric for drainage, soil consolidation and/or grassing of soil; Anti-erosion matting for covering river beds and banks; Anti-erosion matting for providing a grassy covering for river beds and banks; Sound-protective barriers, support walls and elements for the construction of the aforesaid; Cement in liquid or powder form for hardening and consolidating soil
22
Ropes, string, nets, tents, awnings, tarpaulins, sails, sacks and bags (not included in other classes); Padding and stuffing materials (except of rubber or plastics); Raw fibrous textile materials