Time and Location: December 2011, Zhengzhou, Henan Province
Geological Condition: highly viscous stratum
Project Name: South-to-North Water Diversion Project
Drill Rig: Tuxingsun DW3000
Drill Pipe: Caston Φ139.7*10.54*9600mm welding drill pipe
Customer Comments: stable drilling and rotation, normal screwing on and off, high price performance ratio and reliable quality.
