Tom ntej no mus:
Laser ntiaj teb rau Photonics 2022, Shanghai
Lub Plaub Hlis 26-29, 2022
Cov xwm txheej keeb kwm:
Wuhan-Optics Valley ntawm Tuam Tshoj EXPO 2021
Shanghai-Laser Ntiaj Teb ntawm Photonics 2021
Shengzhen-Tuam Tshoj International Optoelectronic Exposition 2021