Crude fibres of glass for insulation purposes; fiberglass for insulation; fibreglass for insulation; glass fibres, for insulation; glass wool for insulation; insulation for pipes; insulation material for roofing; materials for insulation made of glass fibre; materials for thermal insulation; pipe wrappings for insulation purposes; thermal insulation material; thermal insulation material for the construction of lofts; thermal insulation material used in the conversion of lofts