Nooca CA ee rullaluistuyada wareega ah kuma laha feeraha dhexe ee giraanta gudaha, feeraha yaryar ee labada dhinac, rullaluistuyada simmetrical ah, iyo qafis naxaas ah oo adag.
Giraanta gudaha ee nooca CAC malaha feedhaha dhexe, feeraha yar ee labada dhinac, oo ay ku rakiban yihiin rollers simmetrical ah, giraan haga oo uu hagayo giraanta gudaha, iyo qafis naxaas ah oo adag.