Igihe cyo kohereza: Ukuboza-08-2022
Inkomoko y'ingingo: Icyuho cya Zhenhua
Soma: 10
Byatangajwe: 22-12-08
5.Ubwoko bwa vacuum ifunze ikirahuri hamwe nuburyo bwo kuyitegura
Igihe cyo kohereza: Ukuboza-08-2022