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2022-03-14 09:52?? ??? 2014? ???? ??? ????? ?????? ??????? ?? ??????? ??????? ????? ???? ?????? ???????? ????? ???? 500 ????? ???? ?? ??????? ?? ???? 2015. ??? ???? ?????? ??????? ?????? ?????? ?? ?????? ???????? ?? ???? ??????? ?? ????? ???????? 18 ???? ?20 ????? 6 ???? ??? ?????? ?????? ?????????? ????? ????? (???? ??? ???????? ????? 1250 ??)? 3 ??????? ?? ????? ??????? ??????? ???????? ?? ??????? ??????? ????? ??????????? ???????? ???????? ?? ????? ????? ?????? ?????? ????? ?????? ??? ?????? ?????? ??????? ?????? ?????? ????? ?????? ??????? ??????? ?? ?????? ?????? ??? ???? ?????? ?????? ???? ???? ?China ????? ???? ?Baosteel ???????? ????? ????? ???? ???????? ???????? ?? ??????? ??????? ?????. ???? ?????? ???? ????? ????? 200? 300? 400 ?? ?????? ??????? ??????? ?????? ?????? ?????? ??? 0.15 ?2.0? ???? ≤1250 (??? ?? ??? ????????)? ????? ????? 2B ?BA? ????? ???????? ??????? ?? ???? ?????? ???????. ????? ??????? ????? ??????? ???????? ????????? ????????? ??????? ???????? ?????????? ????????? ?????? ?? ??????? ???????. ???? ???????? ????? ????? ?????? ????? ???? ??? ?? ??????? ??????? ????????? ???????? ???? ????????? ????? ???? ?????? ?????? ?? ??? ?????? ??????? ????? ????????.??
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