电熔致密刚玉是一种新型优异的耐火原材料，外观呈现灰黑色，气孔率低，密度高耐酸碱，抗腐蚀以及体积稳定性，广泛应用于冶金、陶瓷、化工等行业，是制作高炉出铁沟捣打料、浇注料的、长水口、滑板和各种刚玉制品的优良原料。

Electrofused dense corundum is a new and superior refractory material. It has a grayish-black appearance, low porosity, and high density, and offers excellent resistance to acids and alkalis, corrosion, and dimensional stability. It is widely used in the metallurgical, ceramic, and chemical industries and serves as an excellent raw material for producing rammed refractories and castables for blast furnace iron-tapping channels, as well as for long nozzles, slide plates, and various corundum products.