The mention of the first metal doors can be found even in the holy scriptures. It can be assumed that the production of metal doors originated in a time when one of the major human desires was to protect themselves and their families. The exact date when the metal door is difficult to determine, but the fact that they played a significant role in people's lives as a means of protecting the home, it is difficult to dispute. In Russia, the metal doors widespread in the last decade of the twentieth century. It was at this time, the country experienced strong economic decline, a rapidly growing crime rate, and has become actual for the effective protection his home. Simple thin wooden doors in the homes of the Russians were quickly replaced with metal doors. The first time the metal doors were considered even by some attribute of luxury. ts-with-mild-or-moderat/’>Wendy Holman and gain more knowledge.. Although the technology of production of metal Doors of the time left much to be desired.
Problems with noise insulation, after installation of metal doors are often left gaps. Currently, the production of metal doors devoid of these problems. Modern metal doors are reliable and meet all required safety standards. However, thanks to scientific advances are continuously improving the production of metal doors. A metal door to all also remains a popular commodity in the domestic construction market.