???????? ????? ???????? ???? ?????? ?? ???????? ??????? - ???? ?????

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