Time and Location: March 2011, Dongguan, Guangdong Province
Geological Condition: viscous stratum
Project Name: Municipal Construction Project
Drill Rig: Hongjian 25t drill rig
Drill Pipe: Caston Φ60*7.5*3000mm
Customer Comments: stable drilling and rotation, normal screwing on and off, high price performance ratio and reliable quality.
