????? ?????? ?????? ??? ???, ?? ??????? ???? ????? ????? ????? ??? ?? ??????? ????????? ?? ?????? ??????. ??? ??????? ???????, Hpmc ???? ??? ??????, ??? ???????? ?????????? ?????????, ??? ????? ?????? ?????? ?????. ?- Zhejiang Haishen New Materials Co., Ltd., ?????? ?????? ?? ????? ???? ??-?????? ??? 1990, ??? ??????? ?????? ??????? ???????? ?? ??? ???? ?? ??????? ??? ???? ????? ?? ?????? ??????. ???? ?? ???? ?? ???? ???????? ?? Hpmc ???? ??? ??????, ?????? ???? ??? ?? ?? ???? ????? ???? ????? ?????? ??????, ????? ?????? ????????? ???????. ???? ?????? ????????? ???????? ???? ???? ???? ?????? ????? ??, Zhejiang Haishen New Materials Limited ????? ??? ?? ??? ???? ??????? ??????? ?????? ?? ??????? ????????? ?? ????? ???????, ??????? ?????????? ?? ?????? ????? ????? ?????? ????????? ????.