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近日,在北京燕山工业区五环线高架桥市政工程的工地上,三一SR280LH型旋挖钻机挖出了长达2m的岩芯,赢得赞誉。据悉,SR280LH型旋挖钻机是三一北京桩机专为云贵川
Recently, Sany SR280LH rotary drilling rig dug up to 2m of core at the construction site of the viaduct municipal works on the Fifth Ring Road in Beijing’s Yanshan Industrial Zone, winning praise. It is reported that SR280LH type rotary drilling rig is the Trinity Beijing pile driver specifically for the Yunnan-Guizhou