?????? ???????? ???? ????? ??????? ????? ??? ??????? ??? ??????????? ????? ??????? ????? ??? ????????? ????-????? ?????-????? ????? ????? ????? ????? ??? ???? ????-??????? ???????? ????? ????? ??? ????? ??? ??? ????? ?????????? ??? ????????, ??? ?????? ????????? ??? 2.0 ?? ???? ????? ??? 30% -40% ??? ?????? ???????? ???????? ??? ??????? ???? ???????? ??? ????

?????? ????????? ?????????? ??????? ???, ???????? ??????, ??????? ??????? ???????? ????? ?????? ??? ???, ?? ?????? HRC60 ???????? ????, ???????? ?????????? ??????????????? ????? ???, ?????? ??????????????? ???? 3-5 ??? ???? ??????? ???? ??? ???; -?????? ??????? ???????? ???, ????? ??????????????? ??? ?????????? ???? ?????? ???????? ???? ???? ??????????? ?????? ???????? ???????????? ????????? ??? ???? ???? ???? ?????? ??????? ?????? HRC58-HRC62-? ???????; ????? ????????, ???????? ?????? ??????? ??-????? ??????? ?????? ?? ≤ HRC32; ????? ??????? ????????????? ?? ?????? ??? ??? ??????? ????????? (??????? ?????) ????? ?????? 5g ?? ????? ???????? ?????????? ??? ???, ???????????? ?????? ??????? ??????? ??? ????????