E whakamahia ana ngā hangarau matatau hei hanga i te mīhini whatu tere-rahi, whitiki nairona taumaha, whitiki ārai, rīpene ngira, me te mīhini whatu tere-rahi o Yongjin kia whai hua ai, kia penapena ai hoki i te mahi. Kua kitea he tino whai hua i roto i te mara o ngā Mīhini Whatu.