ALPINE STEEL offers an expanding range of Ductile and Cast Iron GRATINGS, CHANNEL GRATINGS, KERB-gullies, AND Surface Boxes as per designer’s requirements. Cast and ductile iron grates are available in a variety of patterns. Different sizes and class ratings have varying numbers of ribs, the details of which can be seen on the product image for individual products. Specialty sump grates are also available in cast iron, with a variety of patterns available, offering an aesthetically unique vibe to your installation area.