Iphaneli yeenkomo luhlobo lweepaneli zemfuyo zokuzalisa izilwanyana kwiifama.Yenziwe kwimibhobho yentsimbi e-oval kunye neetyhubhu zesikwere.Iityhubhu ze-oval zishushu zifakwe kwigalvanized kwaye zipeyintwe kunyango lomphezulu.Ubunzima bayo bujikeleze i-1.5-2mm.