Full-automatic bed-type flap gate
The utility model relates to a full-automatic bed-type flap gate which comprises a door plank, and the door plank is arranged on a concrete dam foundation by a hinging base of the door plank and movably connected to a hydrocylinder by a connecting shaft of the hydrocylinder. The hydrocylinder is fix...
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Format: | Patent |
Sprache: | chi ; eng |
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