PFB防火包是一种新型的电缆防火材料 ,由公安部上海消防科学研究所研制成功 ,上海倍安实业有限公司生产 ,属国内首创。该防火包形状如枕头 ,外层采用编织紧密、耐用的玻璃纤维制成袋状 ,内部填充特种耐火、隔热材料和膨胀材料。防火包具有不燃性、防水抗潮性、不含石棉等有毒成 PFB fireproof package is a new type of cable fireproof material. It was successfully developed by the Shanghai Fire Science Research Institute of the Ministry of Public Security and produced by Shanghai Beian Industrial Co., Ltd., which is a domestic initiative. The fireproof package is shaped like a pillow, and the outer layer is made of a fiberglass bag made of tightly woven and durable glass fiber. The interior is filled with special fire-resistant, heat-insulating materials and intumescent materials. Fireproof bag is non-flammable, waterproof, moisture-resistant, asbestos-free and toxic