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