Posankha chitoliro choyenera chopanda msoko, zinthu zambiri monga kuyambitsira kwa mankhwala, ndondomeko, ntchito, mawonekedwe, ubwino, chithandizo chapamwamba, ndi zina zotero ziyenera kuganiziridwa. Mipope yopanda msoko imagwiritsidwa ntchito kwambiri m'mafakitale monga mafuta ndi gasi, petrochemical ndi au ...
Werengani zambiri