maintenance, repair, and installation of building appliances and household appliances such as windows, doors, door and window grids, burglar alarms, burglar guards in the nature of window screens, trellises, protective grid covers for doors, windows and open areas, burglar proof protection bars, and safety accessories, namely, locks

roll-formed unwrought and partly wrought common metals and their alloys; metal goods; namely, doors, windows, window screens, trellises, protective grid covers for doors, windows and open areas, attachable burglar proof protective bars sold as a connected unit for use with doors and windows, locks, and related attachment parts and fittings therefor

roll-formed unwrought and partly wrought common metals and their alloys; metal goods; namely, doors, windows, window screens, trellises, protective grid covers for doors, windows and open areas, attachable burglar proof protective bars sold as a connected unit for use with doors and windows, locks, and related attachment parts and fittings therefor