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???? ????? ???? ????? ?? ???? ??????????? ??? ??????? ???????? ????????? ???? ???? ?????? ??????? ???? ?????? ????????? ????????. ???? ??? ?????? ?????? ?????? ??? ???? ?????? ???? ????? ??????? ?? ????? ????? ??????. ???? ??? ?????? ?? ???? ????? ?????? ?????? ??? ???? ????? ???? ????? ???????? ????? ??????. ???? ??? ?????? ??????? ????????? ?? ???? ?????? ????? ?????? ??????????????? ?????? ?? ???????? ???????? ??????. ?????? ?????? ??? ??????? ????? ??? ?????? ?????? ??????? ????? ????? ??????? ??? ????? ?????? ??????? ????????? ?????? ???? ????? ??????? ?????????? ????? ???? ???????. ???????? ??? ???? ???? ?????? ?????? ??????? ????????? ??? ???? ??????? ?????????? ???? ???. ????? ???? ????? ?? ????? ????????? ????? ???? ??????????? ??? ??????? ???????? ???????? ?????? ?????? ????? ?????? ????? ????? ?????????. ???? ???? ????? ???? ????? ?????? ??? ???????? ?????? ?????????? ??????? ???????? ?? ?????? ???????.
- ??? Q235
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- ????? ??? ????. ? ????? ???? ???? ??????. ? ???? ?????? ??????? ?????? ???????. ? ????? ???? ???????? ??????? ?? ???? ?????. ? ??? ?????? ?????. ? ????? ???? ??? ??? ??? V.
- ?????? ?????: ????? ???????: API599 API6D ????? ????: ANSI B16.10 ???? ??? ???? ?????? API6D ????? ?????: ANSI B 16.5 ?????: ????? ?????? WCB ??????: A182F6a
- ???? ?????? ???? ?????
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- ???? ????? Rb
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