Nke na-abịa:
Laser ụwa maka Photonics 2022, Shanghai
Eprel 26-29, 2022
Ihe omume mere eme:
Wuhan-Optics Valley nke China EXPO 2021
Shanghai-Laser World of Photonics 2021
Shengzhen-China International Optoelectronic ngosi 2021