In brass-plated steel covered with special anti-corrosion white PVC.

Steel sheet enclosed in the articulated structure supports the entire weight of the roller shutter and the vertebra joints extend and wrap around the roller to accommodate the opening movement of the roller shutter. When the roller shutter is completely closed, the reinforced B-Lock elements are compressed on each other and form a rigid system that exerts a high counteracting force against...

Made of galvanized steel.