Ny manaraka ho avy:
Tontolo laser ho an'ny Photonics 2022, Shanghai
26-29 Aprily 2022
Hetsika ara-tantara:
Wuhan-Optics Valley of China EXPO 2021
Shanghai-Laser World of Photonics 2021
Shengzhen-China International Optoelectronic Exposition 2021