6 Building materials of metal, namely, metal profiles; transportable buildings of metal; prefabricated roof sections and covering frames of metal; windows of metal, namely, façade windows, conservatory windows, roof windows, windows for installation in inclined surfaces, in particular residential loft windows; windows of metal for renovation purposes; sliding windows of metal; doors, not for vehicles of metal, namely, sliding doors, fire doors; gates of metal; parts of the aforesaid windows, doors and gates, namely, frames of metal, and window, door and gate leaves of metal; folding shutters of metal for windows and doors; roller shutters of metal for windows and doors; parts of the aforesaid roller shutters, namely, roller shutter housings of metal, roller shutter rails of metal, roller shutter slats of metal; roller blinds and jalousies of metal, fly screens of metal; staircases of metal, namely, spiral staircases and loft ladders; parts of the aforesaid staircases and ladders, namely, staircase banisters of metal, stair treads of metal, stair stringers of metal; fittings of metal for staircases; covers of metal for ceiling openings for ladders; building fittings of metal, namely, fittings of metal for folding shutters, roller blinds, venetian blinds and for roller shutters; fittings of metal for windows and doors, namely, hinge plates, hinges, corner supports, espagnolette rods, corner guides, rosettes, plates and covering caps; locking elements of metal, namely, bolts and closing pieces; door and window handles of metal; window and door knobs of metal; non-electric window closers and door closers of metal; stays of metal for window sashes and door sashes; non-electric and non-electronic locks of metal, not for vehicles, namely, tubular frame locks and mortise locks; non-electric multi-point locking mechanisms of metal, not for vehicles, namely, cylinder-operated and handle-operated multi-point locking mechanisms; non-electric autonomous locking mechanisms of metal not for vehicles; lock cylinders of metal; locking systems, not for vehicles made from non-electric and non-electronic locks of metal, non-electric multi-point locking mechanisms of metal, non-electric autonomous locking mechanisms of metal, lock cylinders of metal; force-transfer devices for opening and closing of windows and doors, namely, connectors of metal and drive rods of metal; rods of metal for manually operating roller blinds; railings of metal for building purposes, wall claddings of metal, fire protection gratings and screens of metal, ladders of metal, scaffolding of metal, walkways of metal, safety gratings of metal, partition walls of metal; vision screens of metal, being building material; ironmongery and small items of metal hardware, namely, screws of metal, nuts of metal, rivets of metal; fixing brackets of metal, fixing supports of metal