A Airakin da iska ya tashe samun damar sarrafa iska ta hanyar kai tsaye ta hanyar kai tsaye iska daidai ga kayan aikin kayan aiki, yana hana aibobi masu zafi. Tsarin face da aka tashe yana haifar da sabon salo inda tsarin rarraba iska, kamar su dvac duct, za a iya shigar don niyya mai kyau.