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?? Zhenneng? ???? ??? ???? ????? ?????? ???????? ?? ???? ???? ??? ????? ??????? ?? ??????? ??????? ?????. ???? ?????? ?????? ??? ????? ????? ??? ?????? ????? ??????? ??? ???? ??? ????? ??? ???? ??????? ?? ?? ???. ????? ?? ??????? ??????? ????? ???? ??????? ????? ???? ?????? ????? ???????? ???? ?????? ?????? ??????? ??????? ????? ?????????? ?? ?????. ?? Zhenneng? ?????? ?????? ????? ???????? ??????? ???????? ??? ?????? ???? ????? ?? ??????. ????? ???? ??? ?????? ????? ?????? ????? ????? ??? ???? ?????.
???? ?????? ??? ????? ???? ????? ?????? ?????? ISO 9001 ?????? ???? ????? ?????? ?????? ISO 14001. ??? ???? ??? ??? ?? ?????? ???????? ???????? ????? ???????? ?????????? ??? ????? CCC ??????? ?????????.