Youlin Guo (Welder Sare)
Hogaamiyaha kooxda alxanka B, maamulka xubnaha kooxda, ku fiican alxanka carbon dioxide iyo alxanka argon.
Waqtiga boostada: Febraayo-16-2023
Waqtiga boostada: Febraayo-16-2023
kooxaha
Waqtiga boostada: Febraayo-16-2023