Peb rov qab los ntawm peb-hnub Beijing Optical Fair (B011 / B022), ntau tus neeg muas zaub los ntawm ntau lub teb chaws tuaj rau peb lub rooj muag khoom thiab peb lub tuam txhab.

Peb Convox Optical yog cov kws tshaj lij optical lens Hoobkas, thiab hauv kev ncaj ncees peb kuj qhia ntau yam khoom tshiab rau cov neeg siv khoom.

Txais tos rau inquriy peb!