Dutch masters of steel since 1667
Dutch Masters of Steel since 1667


The world’s slimmest

With centuries of experience in steel mastery, we have developed a unique, solid steel profile. Our SL30-ISO® profile combines the exceptional strength of solid steel with a high-tech thermal break resulting in an ultra-slim profile with the sharpest contours in the market. Its unprecedented performance only requires a width of 30 mm (1 3⁄16”) and allows architects the design freedom to create revolutionary landmarks of architectural ingenuity and innovation.