Refractory cement, also known as high-alumina cement or slow-setting cement, is a product that has a high resistance to heat and fire. The main component of this product is alumina iron compounds. Other components include calcium oxide, silicon oxide, aluminum oxide, and iron oxide. Its characteristics include hardening and increased strength when combined with water or air. This prod... https://shahrmaftool.com/product-category/افزودنی-بتن/سیمان-نسوز/