Adjustable lighting and ventilating window special for cigar air-curing room and cigar air-curing room
The utility model provides a special adjustable lighting and ventilating window for a cigar air-curing room and the cigar air-curing room. The special adjustable lighting and ventilating window comprises a horizontal track, a first window sash, a second window sash, a first rack track, a second rack...
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Format: | Patent |
Sprache: | chi ; eng |
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