Besides, a group of Chinese craftsmen that made bodkins of the mirrors in a square shape made the Sankakubuchi Shinjukyo Mirror and their skills could lead to government-operated crafts in the Wei dynasty.
さらに、鏡の鈕孔を長方形に作る癖を持つ、ある中国工人群が三角縁神獣鏡を製作しており、その手法が魏の官営工房に繋がる可能性が強いという。