Qalabka farsamada ee heerka koowaad iyo qaabeynta wax soo saarka heerka koowaad ma aha oo kaliya qalabka lagama maarmaanka u ah shirkadaha casriga ah, laakiin sidoo kale dammaanadda soo saarista alaab tayo sare leh.Shirkaddayadu waxay sii wadaa inay iibsato qalab wax soo saar sare leh, waxay soo bandhigtaa qalab cusub, tignoolajiyada cusub, si badeecadamatoor gariir yarwaa taxane ah oo u qalma.