Piling Rig Foundation Drilling Hole Interlocking And Friction Kelly Bar OD368/4/9m
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OD368/4/9m Interlocking And Frictional Kelly Bar Application:Be used for Rotary piling rig drilling tools dig hole in rock or soil layer. Type:Telescopic Kelly Bar 4 sections Lock Type:Interlocking / Frictional Max Drilling Depth :34.5m Max Drilling ......
Beijing Jietaihongli Technology Co., Ltd.
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