?????? ???????? ??????????? ???? ????, ?????? ????? ???, ???????? ??????? ?????????? ?????? ??????? ???, ?????? ?????? ?????? 60 ?????? ????? ???, ????? ??????????? ????????????? ??????? ???, ??????? ??????????????? 3-5 ?? ????? ???; - ???????? ??????? ???????? ?????????, ?????????? ??? ??? ??? ????????????? ????????? ???? ??? ????, ?????????????????, ????????? ??? ????????? ????????? ??????? ????????????? ????????? ???? ???? ???????? ??? ?????????? ?????? HRC58-HRC62 ?????? ???????; ??? ?????, ???????? ??????? ??????????? ???-????????? ??????? ?????? ≤ HRC32 ???; ???? ???? ??????????? ?????? ????? ??? ???????? ????? (???????? ??) ???? ???? ?????? ?????? 5g ???? ?? ?????????? ????????? ???? ????, ?????????? ???? ???????? ????????? ????. ??????