Mapepala a ma kgg ali ndi mphete yakunja, mphete yamkati, komanso kuchuluka kwa odzigudubuza ndi ma spacers. Kugwirira ntchito ndi kulondola kwa kusintha kwasintha koyenera kumatha kubereka katundu kulikonse. Chifukwa ili ndi ma cypolonerly ogudubuza a cylindrical, imatha kukhala yonyamula mbali iliyonse. KGG imapereka mitundu iwiri yamitundu iwiri: Kuzama kwa mpira woyaka ndi mpira wolumikizirana.
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Mavalidwe a mpira
ACBB, yomwe ndi chidule cha mpira wolumikizana ndi mpira. Ndi ma ngodya zosiyanasiyana, katundu wamkulu wambiri amatha kusamala bwino tsopano. Makina osungirako ma kg cources ndi njira yabwino kwambiri yothetsera ntchito zolondola monga makina amakina ogulitsa.
