DTH Drill rod is made of high quality material detected by spectrograph, impact and tension test.
With fully digitized processing line introduced from Japan with integral heat treatment equipment.
Anti adhesion thread with nitrogen treatment on surface make it easier for handling.
Customizable for steel grade, length, diameter, wall thickness and connection threads.
DTH Drill rod diameter: 70-340mm
DTH Drill rod length: 1-6M
DTH Drill rod wall thickness: 6-25mm
DTH Drill rod thread: API REG, IF, BECO