该产品具有难燃性、耐腐蚀、耐油、耐火、质轻、规格型号多等特点，适用于电缆层之间的防火分隔及大孔洞防火封堵，也可用于制作各类防火罩盖、防火挡板和防火门。
BF型产品由无机不燃材料制成，BF-3型产品由无机和有机难燃材料复合而成。
These products are characterized by the good bustibility and the high oil-,c corrosion- and fire-resistance and for themmany specifications are available. They are widely used in fireproof partition of cable layers, firproof blockage for large openings, as well as in fireproof covers, fireproof retaining boards and fireproof doors.
Type BF partition is made of anic non-flammable materials, and type BF-3 compounded with both the organic and the anic non-flammable materials. |
