Panja Pazosangalatsa Panjinga Zoyenda Mosakhazikika Sitima Yogulitsa Nyongolotsi Sitima yaying'ono yodzigudubuza ndi mtundu wa zida zokondwerera masitima apamtunda. Ikuyendetsa mwachangu panjira yayitali, mutha kukhala ndi malingaliro osangalatsa komanso osangalatsa. Coil roller iyi imagwiritsidwa ntchito kwambiri pabwalo lamasewera, lalikulu, paki, malo osiyanasiyana osewerera m'nyumba ndi panja ndi zina zotero. Chowotcherachi chimagwiritsa ntchito pulasitiki wapamwamba kwambiri wolimbitsa mapulasitiki ndipo chimakhala ndi kutetezedwa kwazinthu zachilengedwe.