Uphawu lwamafutha yigama elivamile lophawu oluvamile, olumane luwuphawu lwamafutha okugcoba.I-oil seal iyindawo yokuxhumana evalekile emincane kakhulu enodebe lwawo, kanye ne-shaft ejikelezayo enokuxhumana okuthile nokucindezela, bese kuba indlela elungile yokufaka yohlangothi oluhle nolubi lwe-t...
Funda kabanzi