Ndi ukadaulo wapamwamba kwambiri wa mkono wa miyala wa kaiyuanzhichuang
Kaiyuan Rock Arm, monga mkono wosinthidwa wa ntchito zambiri, ndi yoyenera kukumba popanda kuphulika, monga migodi ya malasha yotseguka, migodi ya aluminiyamu, migodi ya phosphate, migodi ya golide yamchenga, migodi ya quartz, ndi zina zotero. Ndi yoyeneranso kukumba miyala yomwe imapezeka pomanga misewu ndi pansi pa nthaka, monga dongo lolimba, miyala yosweka, shale, miyala, miyala yamchere yofewa, miyala yamchenga, ndi zina zotero. Ili ndi zotsatira zabwino, mphamvu zambiri za zida, kulephera kochepa, kugwiritsa ntchito mphamvu zambiri poyerekeza ndi nyundo zosweka, komanso phokoso lochepa. Rock Arm ndiye chisankho choyamba cha zida zopanda kuphulika.
