Imashini yikawa ya 2 kg nigice cyingenzi cyibikoresho kubakunda ikawa hamwe ntoya cyangwa hagati- ubucuruzi bwa kawa ishaka kubyara ibishyimbo byiza bya kawa. Gusobanukirwa uburyo iyi mashini ikora hamwe nibiranga byayo bitandukanye birashobora kuzamura cyane inzira yo gutoka, biganisha ku mwirondoro nziza yuburyohe kandi kunyurwa muri rusange kubakiriya. Intangiriro yayo, umuhanda wikawa 2kg