1. Kwa zingwe zolumikizira mkati mwa ntchito zamakina opanga makina, kuphatikiza kutumiza ma siginecha, kuyeza, kuwongolera ndi kuwongolera, kumafunikira kufalitsa kopanda kusokoneza.
2. TCWB yokhala ndi chishango champhamvu kwambiri chotsutsana ndi zikoka zamaginito zamagetsi zakunja kuti zipereke kufalitsa kolondola kwa ma siginecha.