6 Materials of metal for railway construction, namely, mine rail, heavy haul and commuter railroad rail, crane rail, stick rail, continuous welded rail, rail ties, preassembled rail panels, rail turnouts, rail frogs, rail fasteners, transition rail, rail switches, namely, a non-powered mechanism for guiding trains from one set of rails to another, restraining rail, railway crossovers, rail braces, rail guard rails, rail joints, insulated rail joints; ballast mats; steel; rolled steel; steel pipes and tubes; steel plates and sheets; steel rails; steel rods; steel coils; steel bars; stainless steel tubes; construction elements, namely, steel piling; metal box beams, bridge and highway railing of metal, guard rails and posts of metal for railways; construction elements, namely, steel pipe piling; steel grid flooring; metal casings; metal expansion joints for bridge decks; metal downspouts; corrugated steel bridge forms