6 Common metals and their alloys; metal building materials and accessories, namely, alloyed iron, alloyed aluminum; cast iron for use in hydraulics, sanitation and buildings, Metal fasteners and fittings, namely, bolts, nails, rivets, screws; metal hinges, reinforcing materials of metal for building purposes in the nature of metal reinforcement sections for hollow plastic sections; locksmith's goods and ironmongery, namely, metal locks, metal locking mechanism, metal lockers, non-electric metal cables and wires, wall panels of metal, metal roofing panels, metal fence panels, metal ceiling panels, door panels of metal, cladding of metal for construction and building, metal floors, metal roofing for conservatories, frames of metal for building glass, namely, metal window frames, stairs of metal, metal window latches, non-electric window and door openers and closers, namely, fasteners, namely, metal bars and chains, Metal handles for doors and windows, metal windows, metal doors, metal gates, metal shutters and metal exterior roller blinds; metal ventilation ducts as parts for windows, doors, roller blinds, shutters and conservatories; metal building materials, namely, pipe joint connectors for sections and end caps for tubing ends; non-electric metal locks, metal security lock cylinders; metal ventilation and filter elements, namely, ventilating ducts of metal, Metal roof vents for heating, cooling, ventilation in residential and commercial buildings; door fittings of metal; metal window fittings, namely, window casements of metal, metal window trim, metal window sills, metal window pulleys; closure mechanisms, namely, metal closures for doors and windows; metal locks