Enterprise Qualification

D&F yadzipereka pakupanga ndi kukonza zida zotchinjiriza zamagetsi zapamwamba kwambiri komanso mabasi am'mabasi opangidwa ndi laminated, Tikukhulupirira kuti luso laukadaulo ndilomwe limayambitsa chitukuko chamtsogolo, kumawonjezera ndalama zonse mu R&D, ndipo tapeza zotsatira zambiri zatsopano.Pakali pano, ma patent oposa 30 apezedwa.