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??????-?? 65 ????????? ?????? ?????? ?? ???????? ???? ??? ???????? ??? ???? ????????? ??? ??. ????? ????? ???????? ?????? ?? ??? ?? ?????????? industrial ??????? ??????? ????? ????????? ???? ??, ?? ?????? ???? ??? ??. ????? ????????? ??????? ????? 1 ??, 24 ?????? ??????? depth ???? ??, ??? 22.5 ???? ????? /?? /???? ???? ??????????? ??????????? ????? ??? ??, ???? ????????? ??????? ??? ??, ???? ??? ??, ??? ??????? ??????? ???? ??? ??? ??, ??? ???? ????? ??????????? ???? ???? ????? ?????? ???? ??? ????? ??.
SEMW always adheres to the market-oriented and technological innovation as the background, and has developed a series of highly targeted construction tools for different user needs, including PJR160 micro pipe jacking rig, PIT pipe rubbing machine, SMD -C73 low-headroom cast-in-place pile drilling rig and many other rich and advanced low-headroom construction products are supplemented by complete sets of construction methods, which perfectly meet the work needs of complex working conditions and ?????? ?????????? ??? ??????? ??????? ?? ???.

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