Construction Machinery Parts Rotary Piling Rig Drilling Friction Kelly Bar For Piling Specifications Diameter (MM) Elements Length (M) Torque (KN·M) Max Drilling Depth(M) 355 3&4&5 ...
Frictional Kelly Bar OD580-6*20m kelly bar are especially designed for drill hard materials and when crowd force is required . kelly bar is key components in the execution of ...
