Dulani ndi kupinda chubu chamkuwa kuti chiwonekere ndi Hairpin Bender ndi Tube Cutting Machine, kenako gwiritsani ntchito chingwe chosindikizira kuti mukhomeze zojambulazo za aluminiyamu kukhala zipsepse. Kenako ulusi wa chubucho, lolani chubu chamkuwa chidutse pa dzenje la zipsepsezo, ndiyeno kulitsani chubucho kuti ziwirizo zigwirizane molimba ndi chowonjezera choyimirira kapena chopingasa chopingasa. Kenako tenthetsani mawonekedwe a chubu chamkuwa, dinani kuti muwone ngati kutayikira, sonkhanitsani bulaketi, ndi phukusi mutatha kuyanika.