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Zhejiang Haishen New Materials Co., Ltd. ?? ????? ??????????? ???????? ?????? ??????? (HPMC) ???????? ?? ??? ????? ????? HPMC ?? ??????? ?? ?????? ??? ?? ????? ????? ???????, ????????????????, ??????? ??????? ?? ????? ???? ??????? ???????? ??? ???? ???? ??, ????? HPMC ?????? ???? ???????? ???? ??? ?? ???????? ?? ?????????, ?????????? ?? ????? ??? ?????? ???? ???? ???? ?????? ??? ?? ??????? ??????? ???? ???? ?????? ????, ?????? ????? ?? ???-???? ??????? ??? ????? ???? ????, ?????? ????, ????? ????? ???? ?? ?????? ????? ?? ??? ??? ????? ???? ???? ??? ??? ?????? ???, ????? HPMC ?? ????? ?????? ?? ??????? ??? ????????? ????? ????? ?? ??? ??? ???? ???? ??? ???? ????????, ????? HPMC ????????? ?? ????????? ?????? ???????? ??? ?? ?????? ??? ??, ?? ???????? ????? ???????, ?????? ?? ????????? ??? ?????? ???? ??? Zhejiang Haishen New Materials Co., Ltd. ???, ?? ???? ???????? ?? ????? ?????????? ?? ???? ???? ?? ??? ???? ???????? ???? ?? ????????? HPMC ?????? ?????? ???? ?? ??? ????????? ???? ?????????? ?? ????? ??? ???? ???????? ???????? ?? ?????? ??????? ????????? ???? ??, ?? ???? ???? ??? HPMC ?????????? ?? ??? ?? ????????? ??????? ????? ???