????? ????? ????? ?? ??????? ??????? ?????? ????? 20 ??? ????? ?????? ???? ?????? ??? ????????? ??? 2.5 ???? ????? ?????? ????? ?? ?????? ?? ??? ?????? ??????? ???????? ????? ????? ???? ?? ?????. ??? ???? ???? ZHENNENG ??? ?????? ???? ???????? ??????? ???????? ????????. ????? ????? ??????? ??? ??????? ??????? ??????? ???????? ?? ??????? ??????? ?????? ????? 20 ??? ??? ????????? ???????? ?????? ???? ?????? ??? 2.5 ???? ????? ???????????.
????? ????? ??? ??????? ?? ????? ????? ???? ?????? ??????? ?????? ????? ??????? ???????? ???????? ?? ??????? ??????? ?????? ????? ???? ????? 20 ??? ??? ????? ??? ???????? ????? ?????? ???? 2.5 ???. ???? ?????? ?????? ??????? ????? ????? ????? ?? ???? ?????? ??????.
?????? ??????? ?????? ??????? ????? ??????? ???? ???????.
??? ????? ???? ???? ?? ??? ?????? ?????? ?????? ??????? ????? ?? ?????? ??? ????????? ???????.
???????? ?????? ???????? ???????? ???????? ?????? ?? ????? ??????? ??? ????? ????.
???????? ????? ????? ????? ??????? ??????? (OEM) ?????? ??????? ???????? ?????? (ODM).




