Ngokuthuthuka kwemboni yobuchwepheshe obuphezulu, izinhlobonhlobo kanye nesidingo sezinto ezintsha, ikakhulukazi izinto ezintsha zokusebenza, zikhula njalo, kanti i-powder metallurgy ingenye yezinto ezintsha.Inochungechunge lwezinzuzo ezinjengokonga amandla okumangalisayo, izinto zokonga, ex...
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