A usually round pin that fits tightly into a corresponding hole to fasten or align two adjacent pieces.
A usually round pin that fits tightly into a corresponding hole to fasten or align two adjacent pieces.
暗榫通常为一圆钉，紧扣在相应的眼里以固定或校正相似的两片
A usually round pin that fits tightly into a corresponding hole to fasten or align two adjacent pieces.
暗榫通常为一圆钉，紧扣在相应的眼里以固定或校正相似的两片