Photovoltaic panel built-in lower hanging type device and built-in shutter hollow glass shutter
The utility model discloses a photovoltaic panel built-in lower hanging type device and a built-in shutter hollow glass shutter, and relates to the technical field of built-in shutter hollow glass. Comprising a top spacing strip; an opening is formed in the side part of the upper beam, and the upper...
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Format: | Patent |
Sprache: | chi ; eng |
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