Aluminum (particularly for mechanical construction, construction of marine vessels, construction of industrial vehicles, tanks and reservoirs); doors, gates, windows, and covers for windows, all of metal; locks of metal for windows; skylights for roofing [windows] of metal; outdoor blinds of metal for windows; hinges for windows and doors (of metal); metal protection devices for windows; fittings of metal for windows of glass; non-electric devices for closing windows; gates of metal; insect screens of metal; mullions of metal; sills of metal; skylight windows of metal; latches of metal; metal interior shutters; security locks of metal; door frames of metal; door frames of metal; insect screens of metal for windows; insect screens of metal for doors; sills of metal materials; metal sheet closures; door panels of metal; window sills of metal; door stops of metal; window seals of metal; components of metal for doors; metal window frames; door protectors of metal; outdoor blinds of metal for directing light; latches of metal being accessories for doors; metal frame and door assemblies; non-electric door bells of metal; skylights of metal in the shape of a vault; metal enclosures and structures; aluminum profiles; building materials of metal.

Polishing; abrasion; stripping; chromium plating; galvanization; sawing; treatment and processing of metallic and non-metallic building materials.