Dulani ndi pindani chubu chamkuwa kukhala chopangidwa 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 onjezerani chubucho kuti zigwirizane molimba ndi chowonjezera choyimirira kapena chopingasa chopingasa. Kenako tenthetsani mawonekedwe a chubu chamkuwa, dinani kuti muwone ngati ikutha, sonkhanitsani bulaketi, ndi phukusi mutatha kuyang'ana bwino.