bjsja

干粉灭火器的使用- 消防百科- 新闻资讯- 北京四季安消防设备有限公司

Apr 30, 2019 · 1、 左手提起灭火器,看压力是否正常(绿区正常,黑区压低,此时,灭火器 ... 2、 将消防栓上面接口放在消火栓后面,同时左脚与消火栓平行,右脚在 ...

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