Metal building materials, products, and elements in class 6; access-hole covers and man-hole covers; rails and handrails, including tubular handrails; stanchions; balustrades; staircases; stair treads; flooring; kickplates for flooring; fencing; barriers; grates and grating, including floor, wall, roof, safety, drainage, sump, trench, and gully grates and grating; all of the aforementioned goods being goods made of metal