The JN series of prefab for copper runner SiC-Al2O3 use a unique exterior design, use high-quality silicon carbide and bauxite as the main raw materials, add ceramic powder and antioxidants. It has the characteristics of good thermal shock resistance, erosion resistance, non-stick copper and copper slag, as well as easy construction. And it achieves the national invention patent.

The prefab for flash furnace is made of corundum mullite material, which can increase the service life by 3~5 times compared with the magnesia-chrome refractory material, and is easy to install. The service life of the copper ditch is more than one and a half months, and the life of the electrode sheath can reach half a year, which has been recognized by users.