Ottostumm | Mogs steel and Architectural Bronze systems offer sleek, contemporary window and door frames that blend refined Italian design with advanced Swiss technology. From windows and doors to bifolding openings, minimal curtain walls, and custom solutions, their distinctive systems elevate any project. Rooted in centuries of craftsmanship, steel and bronze reveal their full design potential when expertly processed. Combining beauty, durability, and a unique architectural style.