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