di may bay air viet nam ma dung xang dung quat , troi a co ngay mat mang.o viet nam cai gi cung hoi lo cai gi cung dom, bay gio den xang may bay nua , bon can bo cao cap co nghi toi nguoi dan dau, bao dam cac quan lon co dam di may bay dung xang dung quat khong, dieu nay chac chac 100% la khong?