Metal entrance doors or gratings on windows, which you can buy in just ten minutes, will be reliable and accurately provide your protection for many years.
Fire Metal doors in bulk in Moscow, I can buy, I recommend a view of the door catalog here. Here you can choose the product under your budget and be sure that, regardless of the price, we buy high quality.
Reliable metal doors are the most “fierce”, that is, they have the highest level of ability to confront hack, they also do not burn and do not rot.
The main disadvantages, which, honestly say, the input metal doors still possess is high thermal conductivity (metal still!) and sound conductivity. But these problems are easily settled by high -quality decoration: the materials used to create the door help, and save the heat in the house and ensure normal isolation from external sounds. And also give the doors the beauty and elegance that are not inherent in the bare metal.