1. Malingana ndi chitukuko chatsopano cha makampani opanga mphira wa silicone, zowonjezereka, zogwira ntchito, zowonjezera khalidwe la mankhwala ndi ubwino wina (wa rabara ya silicone, hardware, mapulasitiki, mafoni a m'manja, etc.).
2.Magulu atatu a njira zoyeretsera zisanu ndi chimodzi, akhoza kuphatikizidwa mwaufulu, okhudzana ndi zosowa zosiyanasiyana za makasitomala.