cathode copper ndi mtundu wazitsulo zopanda chitsulo zomwe zimagwirizana kwambiri ndi anthu. Amagwiritsidwa ntchito kwambiri mumagetsi, mafakitale opepuka, opanga makina, mafakitale omanga, makampani oteteza dziko ndi zina. Ntchito yokhotakhota kukana zingwe zosiyanasiyana, mawaya, Motors, tiransifoma, masiwichi, kusindikizidwa matabwa dera. Mavesi opanga mafakitale ndi a mavesi a mafakitale, kachilombo, ma belo otsekedwa, nkhungu, osinthana ndi ma puls, zotupa, mfuti, zina