900211001000 under HS Code LENSES, PRISMS, MIRRORS AND OTHER OPTICAL ELEMENTS, OF ANY MATERIAL, MOUNTED, BEING PARTS OF OR FITTINGS FOR INSTRUMENTS OR APPARATUS, OTHER THAN SUCH ELEMENTS OF GLASS NOT OPTICALLY WORKED - OBJECTIVE LENSES: FOR CAMERAS, PROJECTORS OR PHOTOGRAPHIC ENLARGERS OR REDUCERS, 854370900019 under HS Code Others, and 854370300000 under HS Code Others were the top imported HS Codes by UDAT URAN SAVUNMA VE İLERİ TEKNOLOJİLER ANONİM ŞİRKETİ in 2021.