Migodi, petroleum, mankhwala, chakudya, mankhwala, ndi mafakitale ena adzawona chithunzi chathu cha skrini yazitsulo zosapanga dzimbiri.
Chitsulo chosapanga dzimbiri mauna ali ndi ntchito zosiyanasiyana, angagwiritsidwe ntchito asidi, zinthu alkali chilengedwe kuwunika ndi zosefera, angagwiritsidwenso ntchito monga makampani mafuta ngati chophimba matope, angagwiritsidwenso ntchito mu makampani CHIKWANGWANI mankhwala monga chophimba chophimba.