Emkhakheni wokudluliswa kwamandla emishini, ukusetshenziswa kwamagiya kuyinto yonke indawo, uhlobo ngalunye lunikeza izinzuzo ezihlukile zezinhlelo zokusebenza ezithile. Phakathi kwalokhu, igiya le-bevel helical, ikakhulukazi uma lihlanganiswe nezinciphisi, ligqama njengesiqongo sobuhlakani bonjiniyela. I-bevel g...
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