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