?????????????? ??????????? ????? ????????? ????????, ????? ?? ????? ??? ?? ??????? ????? ????? ????????? ?? ?????? ??? ??????????? ??? ????? ??????????????. ?????? ?? ??????????????? ???????, Hpmc ????? ????? ???????, ???? ?? ????? ????????? ????????????? ??? ???????????????, ??? ???????? ?? ????? ???????????? ?????. ??? ??????????? ??????? ??? ??????????? ????, ???, ?? ??????????? ??? ???????????? ??? ???-?????? ??????????? ?????? ???? 1990, ??? ????? ????? ???? ?????????? ??????????? ?? ??????????? ?? ????????????? ??? ?????????????? ??? ????? ???????????????. ??? ????? ???? ????????? ?? ???? ??????????????? ??? Hpmc ????? ????? ???????, ???????????? ??? ??? ???? ??? ?????? ????? ?????? ?? ??????????? ??????????, ????????????? ??? ????????? ???????????. ??? ?????? ??? ?? ????? ???????? ???????????? ??? ??????? ?? ???? ??????? ??? ??? ????, Zhejiang Haishen New Materials ??????? ?????? ????? ?? ??????? ???????????? ?????????? ????? ????? ?? ?????? ???????????? ??? ??????? ??????????????, ??? ???? ??????? ???????? ?? ???????? ?? ????????? ??????? ????? ??? ????? ???????????.