M'makampani opanga zinthu, zomangira ndizofunikira kwambiri pakulumikiza ndi kukonza magawo. Iwo ndi amitundu yosiyanasiyana ndipo ali ndi ntchito zosiyanasiyana. Kuchokera ku mabawuti, mtedza, zomangira, ma rivets, ma washer, mphete zosungira, zikhomo, ndi zina zambiri, chomangira chilichonse chimakhala ndi gawo lofunikira. Komabe, poyang'anizana ndi zisankho zambirimbiri, ndizofunikira kwambiri kuonetsetsa kuti zomangira zosankhidwa zimatha kukwaniritsa zofunikira pazochitika zinazake zogwirira ntchito.