6 Building and construction materials and elements of metal, namely, metallic roofing systems composed of gutter, downpipe, internal and external corner, gutter joining element, gutter stop end, gutter flange, running outlet, downpipe clamps, elbow, branch pipe, funnel and gutter hook, metallic tiles for roofs, corrugated steel panels for constructions, folded metal sheets for constructions, metallic tile accessories, namely semicircular ridges, ridge closures, ridge caps, valleys, rain shadow borders, wall borders, gable borders, fastening plates, slope breakings, snow stoppers, funnel sets, under gable flashings, angular ridges, half ridges, supports for ridges, overlapping elements, horizontal wall borders; Silver plated tin alloy; Metal tapes; Poles of metal; Steel; Steel alloys; Steel strip; Cast steel; Steel sheets; Unwrought steel; Steel, unwrought or semi-wrought; Carbon steels; Stainless steel; Stainless steel in strip form; Stainless steel in sheet form; Steel in bar form; Steel in the form of coils; Steel in the form of sheets; Steel in the form of foils; Steel in the form of plates; Steel in roll form; Bright steel; Steels in the form of reels; Cold rolled sheet metal; Sheets and plates of metal; Metal sheet, strip and coil; bird repellent spikes of metal; fasteners, namely bolts of metal, screws of metal, and fasteners of metal for use with metal roofing tiles and metal roofing accessories