The machine lock bar rotary drilling rig uses hydraulic crawler-type telescopic chassis, self-lifting and folding collapsible drilling mast, telescopic drilling rod and many other technical applications. It is a construction machine suitable for hole formation in building foundation engineering. Mai..
Rotary drilling rig is a kind of construction machine suitable for hole formation in building foundation engineering.
Mainly suitable for sandy soil, cohesive soil, silty soil and other soil construction, widely used in cast-in-situ piles, continuous walls, foundation reinforcement and othe..