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Large Diameter Crawler Type Hydraulic Bored Pile Cast-in-Site Pile Engineering Drilling Rig Rotary Piling Machine for 25m Building Foundation Pile Construction, Find Details and Price about Rotary Pile Drilling Rig Rotary Pile Drilling Machine from Large Diameter Crawler Type Hydraulic Bored Pile Cast-in-Site Pile Engineering Drilling Rig Rotary Piling Machine for 25m Building Foundation Pile Construction - Henan Songte Machinery Co., Ltd.