Trailer ihendutse irashobora guhinduka vuba ikosa rihenze ubucuruzi bwawe bwigeze bukora. Byanditswe byumwihariko kubaguzi bashishikajwe ningengo yimari na ba nyirubwite bigenga, Ibintu Byingenzi Kugenzura Mbere yo Kugura Imashini ikoreshwa ya firigo ikora nkigikoresho cyawe cyo gusuzuma. Ubu buyobozi bwuzuye buva muri ZZKNOWN bugabanya ibiganiro byo kugurisha kugirango utange uburyo buboneye, inshuti-nshuti. Wige uburyo bwo kumenya kunanirwa kwihisha (delamination) ukoresheje ibizamini byoroheje byumubiri nijwi, menya kwangirika kwi munsi, kandi ukore isesengura rikomeye rya moteri kumashanyarazi. Huzuyemo ingamba zo kwemeza ubuhanga bwo kubungabunga, urutonde rwibikorwa byubaka, hamwe nigice cyinzobere cyibibazo, iki gitabo gikwemeza ko ushora imari ufite ikizere kandi ukarinda urunigi rwawe rukonje kunanirwa bikabije.