The hot-blast furnace infrastructure casting material/gunning mix adopts porous clinker and light mullite as the main raw materials, and uses ultra-fine powder technology to add various admixtures, which has the advantages of high strength, good volume stability and easy construction.

The blast furnace refractory gunning mix is divided into three types according to the order of adding water (or solution) and the amount of water used, such as wet method, semi-dry method and dry spray coating.

The ladle castable is unshaped refractory material with high alumina material as the main raw material and refractory cement as the binder. It is applied to ladle, tank, working layer of integral casting and so on.

The hot air duct is a variety of tuyere devices that transport hot air from the hot air stove to the blast furnace.