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