GESTIONE SILO, Srl ni mtoa ya bidhaa na huduma kama vile kamera, unajimu,mashine ya kusaga,astrographs,helioscopes,reflexer, angani,refractors, angani,spectroscopes, angani,spectrographs, angani,astrolabes, danjon prism,theodolites, zima, angani (altazimuths),meridian duru, azimuthal duru,angani clocks,chronographs, angani, kurekodi na kuchapisha,sextants,kamera, satellite,image kukuza na mfano vifaa vya utambuzi, umeme, kwa observatories,darubini, angani.