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Shanghai International Optics Fair
An gudanar da bikin baje kolin kayayyakin gani na kasa da kasa na kasa da kasa na SIOF 2021 karo na 20 na SIOF na shekarar 2021 a tsakanin 6 zuwa 8 ga Mayu 2021 a babban taron baje kolin kayayyakin tarihi da na duniya na Shanghai. Wannan shi ne bikin baje kolin gani na farko a kasar Sin bayan barkewar cutar numfashi ta COVID-19. Godiya ga e...Kara karantawa