HIGH-REINFORCED CONSTRUCTION : Laser-cut steel door, 10 mm ( 15 mm by locks ), total thickness 61 mm. 4 mm thickness, anti-smashing, U-shaped rabbets. Chromium-plated , turning bolts ( Ø 25 mm ) mounted on double-supports : 4 + 4 mm. Manganese steel protection (4 + 2) on all the lock. Strong robotized weldings. Internal cover is bent. 2mm body, welded by continual wire. 3 mm of back-wall. Door with fire-resistant insultaing material.

CLOSING SYSTEM : 3-coaxial- wheels combination lock, antimanipulation. 3 Numbers; 1.440.000 possible variations; change by key. The combination can be set at zero if door is open. Devise certified according to the European Norm EN 1300 Class B.