Trenchless whole drill
Selection----meets API standard oil drill pipe dedicated, reliable performance,
Unique tool joints twice thicker molding technology,
Smooth transition smoothly, reducing drag through the mud,
Overall domestic first drill, IF heat treatment technology,
Higher mechanical properties than similar products,
Threaded joints liquid nitrogen treatment, deeper than the traditional higher phosphate surface layer hardness penetration process, thereby increasing the life of the drill
HORIZONTAL DIRECTIONAL DRILLING MACHINE
