????? ????? ???????? ?????? ????? ?????? 2 ???? ?????? ?? ???? ????????
???????? ?????? ????? ?????? (HPMC) ???? ????? ??????????? ??????? ??? ???? ???? ?? ????? ????????? ?? ??????? ??? ??????? ???????. ????? ??????? ???????? ?? ???????? ????????? ??? ?????? ???? ????? ????? ?????????. ???? ??? ???????? ??? ??????? ?????? ??????? ?? ????? ?????? ?? ???????? ??? ?? ??? ????? ???????? ?????? ??????? ?????? ????? ???????? ??? ????? ??????? ???????? ??? ????????? ????? ???????? ?????????? ???????????. ?? ???? Zhejiang Haishen New Materials Co., Ltd.? ????? ???????? ?????? ????????? ?? ????? HPMC. ????? ???????? ?????? ???????? ??????? ????????? ????? ??????? ?? ???????? ???????. ?? ??????? ??? ????????? ????????? ??? ??????? ???? ?????? ?? ???? ??? ??? ??????? ?? ????? ??? ??????? ???????? ???????. ???? ???????? ?????? ????? ?????? ?? ???? Zhejiang Haishen New Materials Co., Ltd. ????? ????? ??????? ??????? ????? ????? ???? ?????? ?????? ????? ?????? ?? ????? ?????? ??????? ?????????.
