低气孔粘土砖主要有（ＤＮ－１２，ＤＮ－１５）及普通粘上砖（Ｎ－１，Ｎ－２ａ），可广泛应用于玻璃窑炉、高炉、热风炉、水泥窑炉、化工窑等热工设备。

Low porosity clay bricks are mainly(DN-12, DN-15) and common clay bricks(N-1,N-2a), and can be widely used in glass kiln, blast furnace, hot blast stove, cement kiln chemical kiln and other thermal equipment.