Fire package from tightly woven outer layer, specially treated glass fiber cloth made of durable pouch, special fire-resistant interior padding, insulation and expansion of materials, fire package with a non-flammable, fire resistance of up to four hours, in a relatively high temperature expansion and solidification. Form an insulation, sealing smoke and fire moisture resistance, free of asbestos and other toxic ingredients. The main technical performance has reached the advanced level of similar foreign products, fire package can be effectively used in power plants, industrial and mining enterprises, high-rise construction, petrochemical and other cables through the holes Department for fire blocking, especially for often need to replace or increase or decrease the cable occasion or temporary construction project fire safety measures.