Excellent insulation effect and easy separation of molten steel, improving defects such as shrinkage, porosity, and porosity in castings, increasing casting yield, reducing the difficulty of riser cleaning, and improving work efficiency.

Excellent insulation effect and easy separation of molten steel, improving defects such as shrinkage, porosity, and porosity in castings, increasing casting yield, reducing the difficulty of riser cleaning, and improving work efficiency.

After construction is completed, a protective shell is quickly formed, which can adapt to long periods of high temperature and refining, and has good self opening effect.