Prefabricated composite board with industrial waste residue expanded material as core material and preparation method of prefabricated composite board
The invention discloses a prefabricated composite board with industrial waste residue expanded material as a core material and a preparation method of the prefabricated composite board. The preparation method comprises the following steps: cutting the industrial waste residue expanded material into...
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Format: | Patent |
Sprache: | chi ; eng |
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