Pamodzi ndi "kasitomala - zoyeserera" zolimbitsa thupi zolimba - Makina Okhazikika - Makina Amphamvu Pampu ya mafuta, Pampu ya mafuta, Makina a Ilc,Mafuta otayirira mafuta. Monga katswiri wapadera mu gawo ili, ndife odzipereka kuthetsa vuto lililonse la kutentha kwa ogwiritsa ntchito. Chogulitsacho chidzapereka kudziko lonse lapansi, monga Europe, America, Australia, Jorgian, Vietnam, yemwe amasankha ntchito yopanga makasitomala. Tikuyembekezera kuchita mgwirizano ndi abwenzi ochokera padziko lonse lapansi.