Rectangular chitoliro ndi mtundu wa dzenje lalikulu gawo kuwala woonda-mipanda zitsulo chitoliro, amatchedwanso zitsulo refrigerated chigawo kupinda. Ndi chitsulo chachigawo chokhala ndi masikweya ozungulira ndi kukula kwake kopangidwa ndi chingwe cha Q235 chotentha kapena chozizira kapena coil ngati maziko, omwe amapangidwa ndi kupindana kozizira kenako kuwotcherera kwanthawi yayitali. Kupatula kuchuluka kwa khoma makulidwe, ngodya kukula ndi m'mphepete flatness otentha-anagulung'undisa owonjezera wandiweyani-mipanda lalikulu chubu kufika kapena kuposa mlingo wa kukana welded ozizira anapanga lalikulu chubu. Gulu la mipope yamakona anayi: mapaipi achitsulo amagawidwa m'mapaipi opanda zitsulo ndi mipope yachitsulo yonyezimira (mapaipi otsekedwa) mipope yotentha yozungulira yopanda msokonezo, mipope yozizirirapo yopanda msokonezo, mipope yayikulu yopanda msoko, mipope yayikulu, ndi mapaipi omangika.