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???? ??? ???? ????? ????? 2012-03-26
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????? ????? ??? ????? ??????? ?? ???? ????? ????? ????????? ?? ???? ????? ???? ????? ??????? ??? ????? ???? ???????: ????? ?????? ???? ??????? ???? ????? ????? ???? ???? ????
???? ????? ???? 2012-03-21
???? ????? ???? (?????? ??? ??? ???? ???????) ??? ?????? ????? ?? ????? ?????? ????????? ????? ??? ????? ?????? ?? ??????? ?????? ??????? ????? ?????? ???? ????? ???? ??? ?? ???? ?????? ???? ???? ????
??? ????? ????? ?????? ??????? ??????? 2012-03-19
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1? ?????? ?????? ?????? ?? API602 MSS-S
???????? ????? ????? ???? 2012-03-15
?????? ??????? ?? ???? ?????? ???????? ?? ?????? ??????. ??? ??? ???? ???? ????? ???????? ??????? ???? - ?????? ????? ????? ?? ????? ???? ???? ??? ???? - ????? ?????? ???? ???? ????? ????????.
????? ???????? 2012-03-12
????? ???????? (??????? ???? ???? ???????? ???? ?? ???????? ???????) ????????? ?????? ?????? ?? ?? ???? ????? ??? ??????? ?? ???? ???? ?????? ???????. ?? ????? ????? ???????? ??????? ???? ???? ?? ????
????? ??? ????? ????? ???? ???????? 2012-03-07
???? ???????? ????? ????? ??? ????? ????? ???? ???????? ?? ?????? ??????? ??? ?????? (???? ???????? ??????) ???????? (????? ?????? ??????)? ?????????? ?????
?????? ?? ???? ??? ????? ?????? ... 2012-02-27
?????? ???? ??? ?? ?????? ??????? ???????. ????? ???????? ?? ????? ?????? ?? ???? ?? ?????? ?????? ?? ?????? ??? ????? ?? ??????? ???? ????? ?????? ???? ????? ????? ????.
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The introduction of plug valve 2012-02-23
Plug valves are valves with cylindrical or conically-tapered "plugs" which can be rotated inside the valve body to control flow through the valve. The plugs in plug valves have one or more hollow pass
