Nyob zoo cov neeg muas zaub thiab cov phooj ywg,
Peb yuav koom nrog peb-hnub Beijing Optical Fair (B011/B022), tos ntsoov rau koj mus ntsib.
Lub sijhawm ntawd, peb yuav nthuav tawm peb lub tuam txhab cov khoom.Txais tos rau peb lub rooj muag khoom kom paub txog.
Post lub sij hawm: Sep-02-2023