Wireless electric cut-off valve for bridge and bridge environment-friendly drainage system
The invention discloses a wireless electric cut-off valve for a bridge and an environment-friendly drainage system for the bridge. The wireless electric cut-off valve for the bridge comprises a drainage pipe, a water outlet of the drainage pipe is connected with a valve in a sealing mode, and a valv...
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Format: | Patent |
Sprache: | chi ; eng |
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