This document provides information about retractable security doors manufactured by VIOMETALOUMIN. It describes the benefits of the retractable security doors, which include security from locking in 4 points with a uniform hinge along the entire frame length, aesthetics from its simple form matching modern and traditional homes, and minimal space requirements when open. The document also details technical specifications for different models of the retractable security doors and provides images to illustrate features like the steel rotating bars, locks, scissors, and 180 degree rotation.