Aluminum joinery is the best alternative for special constructions, offering a high degree of mechanical resistance. The painting of this joinery is done in an electrostatic field and can be executed in a wide variety of colors. Different series of profiles are used, from those without a thermal barrier to those with a high degree of thermal insulation. The mechanical joining of the aluminum is done by crimping and not by mechanical screwing, which gives a much longer life. Aluminum joinery windows and doors are recommended for company premises, institutions, shops with high traffic or schools.