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Tuam Tshoj lag luam wholesale ntsev resistant trenchless yeeb nkab drilling bentonite
Trenchless yog ib txoj kev tsim kho nyob rau hauv niaj hnub engineering, xws li kab rov tav drilling siv, yeeb nkab jacking siv, roj drilling, geological kev tshawb fawb thiab qhov tunnel shield tshuab siv.Tej yaam num uas tsis ua tiav kev tsim kho hauv av los ntawm kev khawb av yog hu ua trenchless tej yaam num.Hauv cov haujlwm trenchless, trenchless bentonite plays lub luag haujlwm tseem ceeb.
