Plate double-sided pretreatment device for portable house and pretreatment method using same
The invention discloses a board double-sided pre-treatment device of a portable house and a pre-treatment method using the board double-sided pre-treatment device, and aims to form protective layers on painted surfaces on two sides of a sandwich board, so that less water drops and dust can be effect...
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Format: | Patent |
Sprache: | chi ; eng |
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