15-425 Mbale zosungiramo zinthu zopangira zinthu ndi zoyenera kulongedza zinthu zosiyanasiyana zopangira mankhwala, mankhwala owonjezera amtengo wapatali, ma reagents amankhwala, zodzoladzola, zodzoladzola, ma essences ndi mafuta, ndi zina zotero. Ndioyenera kusungidwa kwanthawi yayitali ndi kunyamula katundu, ndipo imakhala ndi ntchito yabwino yosindikiza.