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