Changde, Hunan Construction of high-pressure rotary spray pilot hole of old Zhang Miaotai Bridge in _Qianshan heavy industry-Quanzhou Qianshan Machinery Technology Co., Ltd. LD-8100-LD-8150-LD-8180 (crawler full hydraulic anchor drilling machine) multifunctional drilling rig

Changde, Hunan Construction of high-pressure rotary spray pilot hole of old Zhang Miaotai Bridge in

writer:ld-driller | time：2020-09-09 15:46:56

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