??????:?????? ????????? ????? ??????? ?????, ???? ???? ??????? ??????? ???? ???????????, ????????, ?????? ????? ??????? ????? ??? ??. ???? ??? ??? ??? ??? ??, ???

?????? ????????? ????? ??????? ?????, ???? ???? ??????? ??????? ???? ???????????, ????????, ?????? ????? ??????? ????? ??? ??. ???? ??? ??? ??? ??? ??, ??? ????? ??????? ????? ?? ??? ??? ??? ??.
????????? ???????, ??? ??? ???? ??? ?????? ????? ????????? ????? ???? ???? ????.
?? ?????, ???? ????? ???????? ????? ?? ????????? ?????? ???? ??: ??? ????? ??? ??? ?????.
??? ?????: ??????, ????????, ???????, ?????, ??????: 150MPa ???? ???? ???.
????? ??????: ??????? ???? ??????? ????? ??? ???? ?????????? ??????? ????? ???? ??????? ??? ??. ???? ????? ????????? ???????? ???? ???? ??? ???? ??, ??? ??? ???? ???? ???? ??? ????? (???? ????????? ????) ?? ????? ??? ???? ??. ???, ??????????? ???? ?????? ????????? ????? ???????? ???? ??????? ??? ??, ??? ?????? ????????? ????? ???? ????? ????????????? ???????? ??????? ??? ??.
?????? ?????: ?????? ?????, ?????? ?????, ?????, ?????? 150MPa ?? ???.
????? ??????: ???? ??????? ???????? ?? ??? ???? ??????, ?????? ???? ??????, ???? ???? ???? ?????? ???? ???? ???? ??? ???? ?????? (???? ??????) ???????? ?? ???? ??. ?????????? ????: ?????? ??????? ?????? ???? ????????? ??????? ?? ???? ???? ??? ????? ??. ?? ???? ??????? ??????? ?????? ?????? ????? ???????? ??????? ??? ??, ???? ????? ???? ???? ???? ?????? ????? ??.
?????? ????? ????????? ????????? ????? ??? ????????? ?????? ???? ?????? ??? ???? ??. ??????? ????????? ??? ??????? ???? ????? ???? ????? ??.