At present, the products under supply include three-slot/single-slot floating plug; The maximum size of plug is 305/325mm; Using high-quality refractory materials as the main raw material, the effect of scouring resistance, corrosion resistance and slag blocking is obvious, the slag layer thickness of the ladle is greatly reduced, the slag amount in the ladle is reduced, and the phosphorus recovery of the steel is significantly reduced. This product can be used as an efficient slag retaining material for smelting high purity steel or variety steel.