Ibi: Mongolia ti inu, China Orukọ ise agbese:Chaersen ifiomipamo Eto fọọmu:Awọn fọọmu ti igi igi;Eto gigun;Scaffolding shoring eto Akoko ifiweranṣẹ: Oṣu Kẹrin Ọjọ 16-2021