Profile: KT Refractories US Company offers varieties of refractory raw materials, high-grade refractory bricks, castables and ceramic fiber blankets. Our products include high alumina refractory products, corundum and mullite refractory products, acid-resistance, alkali-resistance, low pore bricks, low weight, insulating refractory products, magnesia bricks, magnesia-chrome bricks semi-direct, direct bonded magnesia-chrome bricks, magnesia-spinel refractory products, SiC products and high temperature refractory mortar.