Metal door loops are installed in hidden places.

Metal entrance doors, as a rule, are made of cold -rolled sheet of stainless steel, about 2 mm thick. Such doors have a complex steel profile. Metal door loops are installed in hidden places. Complex locks often have additional protection in the form of a steel casing. Special polymer color has both protective and decorative properties. Such a coating is very stable both to mechanical influences and the effects of natural phenomena, such as the sun and wind, rain and snow, to constant temperature differences, pressure and humidity. If the door is made of ordinary cold -rolled steel, then this coating prevents metal from corrosion well. Coating on a metal door is applied in the factory using special technology.