1.favourable price best quality 2.soild,wear resistant 3.carbon steel casting
Oriented drill (2 3/8 ~ 6 5/8FH)Connection: Direct (direct drill pipe connection), then unloading with all directions of the type (structure)Signal stick handling method: post-mounted, side-mounted
unloading with all directions of the type (structure)
User according to the stratigraphic nature of the types of guide plate to improve construction efficiency.
pilot drill bit pilot drill board