Enterprise Qualification

D&F yadzipereka pakupanga ndi kukonza zida zotchinjiriza zamagetsi zapamwamba kwambiri ndi mabasi am'mabasi opangidwa ndi laminated, Tikukhulupirira mwamphamvu 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.