मसाताका इजिरी, दाइची शिमोनिशी, डाइसुके नाकागावा, कुमिको तनाका और तोशिहिको योशिमुरा
?????-????? ???? ?????? ?????? ?????? ?? ?????? ???? ???, ?????? ?? ??????? ?? ???? ?? (?? ?????? ??? 1%) ????? ???? ???? ???? ???, ??? ?????? ?????? ?? ????? ??? ????? ???? ???? ?? ???????? ?? ????? ????? ???????? ?????? ???? ???? ???????, ?? ?????????? ???????? ????? ?? ???? ???????? ???????? ????????? ???? ???? ???? ?????? ?? ???? ???? ???????????? ???????? (MFC) ????? ?????? ?? ??, ?? ???????????? ???????? ?? ?? ??? ???????? ?? ??? ?????? ??? ?? ????? ??? ?? ?? MFC-??????? Cr-Mo ?????? (JIS-SCM435) ?? ??? ??? ???????? ???????? ??? ????? ???? ??, ??? ????? ?? ??????? ??? ??? ???? ?? ?????????? ???? ?? ????? ????? ?? ?????? ???? ??? ???? ?? ?????? ???, ?????? ?? ??? ?????? ??? ?? ????? ??????? ??? ?????? MFC ??????? Cr-Mo ?????? (JIS-SCM435) ??? ??? ?? ???????? ???????? ??? ????? ?? ???? ?? ???? ???
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