Ku nkunga y’ishami ry’ibyuma by’Ubushinwa Ishyirahamwe ry’imyubakire y’Ubushinwa （CSPA） kandi ryakiriwe na Tianjin Youfa Steel Pipe Group, 2021 Symposium yohereza ibicuruzwa mu mahanga byabereye i Tianjin ku ya 16 Nyakanga.
Nyuma yo guhura, abahagarariye ibiganiro nyunguranabitekerezo byo kohereza ibicuruzwa mu mahanga 2021 basuye itsinda rya Tianjin Youfa Steel Pipe Group ku ya 17 Nyakanga
Igihe cyo kohereza: Nyakanga-17-2021