Popeza gulu la zida zolongedza lachulukira pamsika, makina onyamula thumba omwe adayambitsidwa ndi makina ogulitsa pamsika ali ndi mwayi pakutsatsa malonda, makamaka potengera magawo a magwiridwe antchito, magwiridwe antchito, mtundu wamapaketi, ubwino wake ndi zina zotero. , ikhoza kudziwika ndi makasitomala ambiri popititsa patsogolo msika.

