Metal building materials, namely, fittings for roofing, Coils, Flat sheets, Bars, Gutters; Roof Edges, pipes, Elbows; Sectorial Elbows; Double Elbow, Extendibles, Miters, Expansion Joints, End Caps, Edge outlets, Swiss outlets, Leader heads, pipe clamps; Screws, Wall Plugs; Funnels, Branch Reductions, Junctions, Lead; Stick lead tin Solder, Popes, Hangers, Straps, Tie Rod, Crop End, Terminals, Snow Guards, Bent File Fastener, Skylights, Windows, Flashings, Embellishment; Rivets, Self-Tapping ...