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JVB ethwele isahluko solwazi
Ezi ngxaki zilandelayo kunye nezisombululo kuphela iibheringi zebhola yegroove enzulu, ethwele ukufakela kunye nokusetyenziswa kwenkqubo yeengxaki kunye nezisombululo Ingxaki yoku-1 :Ukuthwala akukwazi ukufakwa (i-diameter encinci yangaphakathi okanye i-oute enkulu...Funda ngokugqithisileyo
