Timaperekanso ntchito zowonjezera kwa makasitomala m'makampani azachipatala, magalimoto, ogula, zamagetsi ndi zomangamanga, monga kulongedza katundu ndi sub-assembly.
Takhala tikugwira nawo ntchito yopangira nkhungu kwazaka zambiri ndipo tadziwa zambiri pakupanga nkhungu, makamaka tikuchita ndi nkhungu zoponyera mafelemu komanso majakisoni osinthidwa makonda.