Profile: Shreeji Enterprises is a supplier of ceramic fiber products, insulation bricks & blocks, high alumina bricks, grinding media, refractory materials, and castables. Our refractory fibers are made from alumina, silica and zirconia. Our fibers are resistant to chemical attack, except for hydrofluoric and phosphoric acids and strong alkalies. Ceramic fiber boards are rigid self supporting insulating product manufactured from refractory fibers. Ceramic fiber boards are designed for use in conditions requiring insulating properties combined with rigidity and mechanical strength.