Okokuqala, isakhiwo esiyisisekelo se-bearing Ukwakheka okuyisisekelo kokuthwala: indandatho yangaphakathi, indandatho yangaphandle, umzimba ogoqayo, ikheji Indandatho yangaphakathi: ngokuvamile ifanelana eduze ne-shaft, futhi ijikeleze ndawonye.Iringi yangaphandle: imvamisa iba noguquko lwesihlalo esithwele, ikakhulukazi ukusekela umphumela.Ingaphakathi nangaphandle i-r...
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