Ngophuhliso lwentengiso ye-orthopedic, uphando lwemathiriyeli yokufakelwa nalo lutsala umdla wabantu. Ngokwentshayelelo kaYao Zhixiu, imathiriyeli yentsimbi ekhoyo ngoku ihlala ibandakanya intsimbi engenasici, i-titanium kunye ne-titanium alloy, isiseko se-cobalt ...
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