Kwa zaka zopitilira 20, stmc yadzipereka kupereka zinthu zapamwamba ndi ntchito zapadziko lonse lapansi. Monga bizinesi yotsogola ya makina owerengera a Crygenic Tapereka makina masauzande ambiri m'maiko opitilira 30. Kuphatikiza pa zinthu zabwino, timakondanso kwambiri kuntchito yamakasitomala. Takhazikitsa dongosolo lokhwima lokhala lokhwima kuti muwonetsetse yankho la nthawi ya makasitomala ndikupereka chithandizo chonse chozungulira.
