Completely manufactured from 10/10 thickness electro-galvanized steel sheet, cold pressed and coated. “Monolithic” strong frame, no feet adjustment needed,always ensuring a perfect door closure (this kind of frame does not need the presence of a technician during the test). External acid resistant epoxy coating electrostatically applied at a temperature not less than 200 °C, which ensures a layer thickness higher than 90 microns on the whole surface of the cabinet. Special insulation (60 mm) with rock wool high density panels covered with a special tissue made ofi nactive material, fi xed with ceramic adhesives.