... Steel Fire Protection Door 船用单扇防火门 fire view door 看火门 Fire Rated Door 防火门 ...
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fire view door
防火观景门
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The reflective fire-viewing mirror is to view the fire, it is made to comply with the scientific principle, and user can pull out the fire-viewing mirror under the door to view the firing condition.
采用反射式观火镜观察火焰，科学合理。用户只需从门下方底部拉出观火镜，便可观察到整个火焰的燃烧状况。
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