Yerekezerani ma chillers oziziritsidwa ndi mpweya ndi ma chillers oziziritsidwa ndi madzi kuti mugwiritse ntchito m'mafakitale. Dziwani kusiyana, zabwino ndi zoyipa, komanso momwe mungasankhire ma chillers oyenera a mafakitale, laser, CNC, ndi makina osindikizira.