Amaketanga amarola adlala indima ebalulekile ezimbonini ezahlukahlukene ezifana nezokukhiqiza, ezezimoto, nezolimo, lapho asetshenziswa khona ukudlulisa amandla ngendlela efanele. Kodwa-ke, ukukhathazeka okujwayelekile phakathi kwabasebenzisi ukuthi amaketanga e-roller anwebeka ngokuhamba kwesikhathi. Sivamise ukuzwa umbuzo othi: “Ingabe amaketanga e-roller ayamisa...
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