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???? ???????? ??????? ??????? ???????? (Yuehong Membrane Structure Co., Ltd.) ?? ???? ????? ?????? ??????? ???? (Yiji Enterprises)? ????? ??? 1998. ??? ????? ??????? ?? ????? ?????? ????? ????????? ????? ????? ????? 20,000 ?2. ???? ?????? ???? ????? ??????? ???? ??????? ???????? ????????.

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