Enterprise Qualification

D&F tau cog lus rau kev txhim kho thiab kev txhim kho cov khoom siv hluav taws xob zoo hluav taws xob thiab cov tsheb npav laminated, Peb ntseeg siab tias kev tsim kho tshiab yog lub zog tsav rau kev txhim kho yav tom ntej, nce kev nqis peev hauv R & D, thiab tau ua tiav ntau yam kev tsim kho tshiab.Tam sim no, ntau tshaj 30 patents tau txais.