mbali:

1, Mphira chogwirira, wabwinopo

2, tsamba ndi ulusi lotsekedwa sanali conductive, mu pafupi ndi magetsi ntchito-malo awo ndi otetezeka ntchito.

3, 3 lonse ndi kusindikizidwa ndi inki kunja, momveka, yeniyeni. tsamba padziko dothi akhoza kutsukidwa, ndi sikelo akhoza kukhala bwino.