Diameter
Depending on its thickness, the tube can be divided into three types: light, ordinary and reinforced. You should be aware that a considerable thickness of metal has a positive side (high corrosion), and negative: they are heavier and less flex under repair and installation works. Differ steel pipes and the diameter, and stands out as […]
Stationary Detectors
For the first time metal detectors, like principal amount of the technical project, created for the strategic needs of the military complex of the country. First, actively used mine detectors, which primarily provided to detect and destroy mines and other explosive objects. They replaced the traditional and ineffective sapper tools – metal schupam. Metal detectors […]
Doors
According to police statistics, in the commission of theft in about half of the criminals opened the door by the selection of keys, the fourth part is the fact that attackers squeeze or knock the door. So one of the the most effective ways to protect your home, many consider the installation of a reliable […]