Izingcezu ezingama-30 zamatafula e-nitriding welding wekhwalithi ephezulu seziqediwe, futhi sesilungele ukuqedela ukupakisha okujwayelekile okwenziwe ngokhuni ukuze siqinisekise ukuthi imikhiqizo ngeke ishaywe ngesikhathi sokuthutha.
Isikhathi sokuthumela: Nov-16-2021