6 Building and construction materials andelements of metal, namely, brackets of metal for building and metal piles; Containers, and transportation and packagingarticles, of metal, namely, containers of metal for liquid fuel, containers of metal for transportation, and metal packaging trays; Doors, gates, windows and window coverings of metal; Metal hardware, namely, washers; Structures and transportable buildings of metal, namely, metal shelter structures; Pipes, tubes and hoses, and fittings therefor, including valves, of metal; Railway material of metal, namely, railway sleepers of metal; Arches of metal, namely, frames of metal for building; Beams of common metal for building; Metal blocks for construction;Bracings of metal, namely, braces of metal for handling loads; Metal building beams; Building castings of metal, namely, cast steel; Building materials of metal, namely, building panels of metal; Castings of lead or its alloys; Ceiling units of metal, namely, metal ceiling panels; Fabricated metal components for building foundations; Facade construction components of metal, namely, exterior metalshutters; Facade facings of metal, namely, exterior metal shutters; Facades of metal, namely, exterior metal shutters; Fired refractory building materials of metal; Frames of metal for building, namely, window frames of metal; Frameworks of metal for building; Joists of iron or steel; Ironmongery of metal for building, namely, iron slabs; Metal beams; Metalpipes, metal tubes and hoses, and metalfittings therefor, including metal valves; Plating compositions composed of metals; Slabs of metal for building; Sheet piles of metal, namely, steel sheets; Roofing materials of metal, namely, metal roofing panels; Roofing plate of metal, namely, sheet metal plates; Roofing sheets of metal, namely, steel sheets; Tilesof metal; Structural steels, namely, hot-rolled steel bars; Steel beams; Steel building materials, namely, steel wire rope; Steel frames for building; Steel reinforcement for use in the construction of concrete floors; Steel sheet for use in building; Brackets of metal for building; Bed casters of metal; Beak-irons; Non-mechanical cable drums of metal; Cable thimbles of metal; Metal cable clips, wires and chains; Expansion joints of metal for floors and walls; Metal coils; Nuts, bolts and door fasteners of metal; Semi-finished articles of aluminum or its alloys; Steel forgings; Steel grating;Steel grinding balls; Steel grinding rods; Common metals and their alloys including stainless steel; Steel in the form of plates; Steel in the form of coils; Cold rolled sheet metal; Steel; Bright steel bars; Stainless steel; Carbon steel;Steel poles; Bar steel, namely, cold-finished steel bars; Plated steel; Rerolled steel; Rolled steel; Sheet steel; Profile steel, namely, hot rolled structuralsteel; Steel pipes; Cast steel; Steel alloys; Unwrought steel; Steel rails; Steel rods; Steel sheets; Steel wire; Vinylcoated steel sheets; Alloyed steels; Carbon steels; Rerolled steels; Stainless steels; Rolled steels; Galvanized steel sheets; Steel sheet for automobile bodies; Steel, unwrought or semi-wrought; Steel in sheet, rod, bar and billet form; Tubes of steel, including those rolled, peeled or ground; Valves of metal other than parts of machines including those from alloy steel and titanium; Branching pipes of metal including those from alloysteel and titanium