????? ???? ???????? ????? ????????: ???? ????? OEM ????????? ?????

???????? ????? ???????? (HEC) ?? ???? ?????? ????? ??????????? ???? ?????? ??????? ??? ???? ???? ?? ????? ???????? ???? ?????? ???????? ?? ??????? ???????? ?????? ???????. ???? ??? ???????? ???? ?????? ??????? ???????? ?????? ???????? ??????? ???????? ????????? ????????. ?? ???? ????? ??????? ?????? ?????? ??????? ???? HEC ?????? ???????? ???? ?? ?????????. ????? ???? Zhejiang Haishen New Materials Co., Ltd. ?? ????? ???????? ????? ???????? ???? ??????? ??? ???? ???? ???????? ??????? ????????. ???? ?????? ??????? ???????? ???????? ??? ????????? ???? HEC ????? ??? ?????? ???????? ??????? ????????? ??? ???? ?????? ?????? ?????? ????????. ?? ???????? ?????????? ?????????? ??????? ?????? ?????? ???? ?? ??? ??????. ?? ???? ??????? ???? ????? ?????? ??? ???????? ????? ???????? ??????? ????? ????? ????? ???????? ??? ???? ?????. ?????? ?????? ?? ?????? ??????? ?? ???? Zhejiang Haishen New Materials Co., Ltd.? ??? ?????? ??????? ?? ????????? ????? ????????