????? ????? ???????? ????? ????????: ????? ????? ????? ODM

???????? ????? ???????? (HEC) ?? ?????? ????? ????? ???????????? ???? ??????? ?? ?????? ???????? ??? ???? ???? ?? ????? ????????? ??? ?? ??? ???????? ??????? ???????? ???????. ????? HEC ??????? ??????????? ?? ??????? ???????? ?????? ???????? ??? ???? ???? ?????? ?????? ????????. ????? ???? Zhejiang Haishen New Materials Co., Ltd. ?? ????? ???????? ????? ???????? ???? ??????? ??? ???? ??????? ??????? ??????? ?????? ?????????. ????? HEC ????? ??? ???????? ?????? ?????? ??????? ?????? ???? ?????? ??? ????? ??????? ?????? ?????????? ????????? ??????? ??????? ??????? ??????. ???????? ?? ???????? ????????? ??????????? ???? ?????? ????? ?????? ?????? ?????????? ???????? ????????. ?? ????? ??? HEC ????? ??? ??? ????? ???? ?????? ????????? ????? ?? ???? ????? ??????? ??????? ?? ?????? ????? ?? ????????. ???? ?????? ???????? ??????? ????????? ????? ???????? ????? ???? ?????? ???????? ??? ???? ?????.