Olu hlobo lweebheringi zebhola luneendlela ezimbini zomdyarho ngaphakathi kunye neendlela zomdyarho ezijikelezileyo kwiringi yangaphandle. Ingumnini wepropathi engokwemvelo yokuzilungelelanisa. apho ulungelelwaniso oluvele kwiimpazamo zokunyuswa okanye ukujikwa kweshaft.