Iziqu zebhizinisi

I-D&F izibophezele ekuthuthukiseni nasekuthuthukiseni ukusebenza okuphezulu kwezinto zokufaka ugesi kanye namabha amabhasi ane-laminated, Sikholelwa ngokuqinile ukuthi ukuqanjwa kabusha kwezobuchwepheshe kungamandla okuthuthukisa ikusasa, kukhuphula njalo ukutshalwa kwezimali ku-R&D, futhi sizuze imiphumela eminingi emisha.Njengamanje, kutholwe amalungelo obunikazi angaphezu kwama-30.