ነዳጅ እና የኬሚካል ኢንዱስትሪዎች: polymerization, ጤዛ, distillation, መቅለጥ, ከድርቀት, የግዳጅ አማቂ ማገጃ.
Mafuta ndi mankhwala mafakitale: polymerization, condensation, distillation, limatsogolera, kuchepa madzi m'thupi, anakakamizika matenthedwe kutchinjiriza.