UNDERLYING COATING FILM CUTTING EDGE TOOL FOR ALC BOARD, FASTENING TOOL FOR ALC BOARD WITH THE SAME AND FASTENING METHOD OF ALC BOARD

PROBLEM TO BE SOLVED: To prevent an underlying coating film 1 from being turned up after fastening end of an underlying-coated ALC board 2.SOLUTION: While inserting a self-drilling screw (male screw that performs tapping by itself) 6 into a screw insertion hole 12 of an underlying coating film cutti...

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Bibliographische Detailangaben
Hauptverfasser: SHINOZAKI MASAO, FUKAZAWA KAZUO
Format: Patent
Sprache:eng
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