适用于自动扶梯洞口或其它水平洞口的平面防火分隔
　　水平钢质防火卷帘：水平钢质防火卷帘其帘板作水平方向运动，用于自动扶梯口等作平面或楼层防火隔断，与垂闸相比成倍减少隔断面积，因不需要立柱面装饰，降低造价提高场地的合理使用率。
Suitable for plane fire-proof of elevator holes or other horizontal holes.
Lying steel fire-proof rouler:Leaves of lying steel fire-proof rouler move horizontally and applied to the-proof of elevator.Compared to the gear,the areas are sharply decreased by many folds.It doesn't need the pillars and decorations so that the cost will be dexreased and the effectiveness of ground will be enhanced.