O le a sosoo ai:
Lalolagi Laser mo Photonics 2022, Shanghai
Aperila 26-29, 2022
Mea na tutupu fa'asolopito:
Wuhan-Optics Vanu o Saina EXPO 2021
Shanghai-Laser World of Photonics 2021
Shengzhen-China International Optoelectronic Exposition 2021