Fireproof paint-free door capable of rapidly spraying water
The invention provides a fireproof paint-free door capable of rapidly spraying water. The fireproof paint-free door comprises a door plate, a water tank, water pipes, thin iron pipes, sealing rubber pads, long elastic rubber bands and clamping blocks; and the water tank is bonded in the door plate i...
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Format: | Patent |
Sprache: | chi ; eng |
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