The fire sleeve of Hebei Zeal Fiberglass Materials Co.,Ltd .has good high temperature resistance. It can be used to protect the cables ,wires nearby the caster ladle and ladle cara. Avoid the damage caused by steel slag splashing in high temperature environment. To avoid accidents such as fire, to protect the safety of workers, the fire sleeve is essential protection materials in the steel works. Not only in China ,but also in all over the world . The fire sleeve plays an important role in the high temperature environment.