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