Alumina carbon long nozzle is mainly used to prevent oxidation between ladle and tundish. Standard aluminum carbon bulk material has excellent performance, no explosion, erosion resistance. High standard zirconium material to ensure that the slag line parts with excellent corrosion resistance. The standard magnesium material ensures that the slag line has excellent corrosion resistance to Ca treated steel. The inner layer of carbon-free material to ensure that the ultra-low carbon steel, silicon steel, clean steel special requirements. According to customer requirements, to meet all the steel used a pouring, Use for more than 10 hours, In the leading domestic level. Significant features are: can be irrespective of repeated use, and all free baking use.