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Priority to JP13946886UpriorityCriticalpatent/JPS6345412U/ja
Publication of JPS6345412UpublicationCriticalpatent/JPS6345412U/ja
Taper piece, thread fastening construction using taper piece with female thread, formed drill for processing insertion hole for taper piece, and hammer for driving of taper piece
Taper piece, thread fastening construction using taper piece with female thread, formed drill for processing insertion hole for taper piece, and hammer for driving of taper piece