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pilot drill bit pilot drill board
pilot drill bit pilot drill board

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)

  

side-mounted

User according to the stratigraphic nature of the types of guide plate to improve construction efficiency.

pilot drill bit pilot drill board

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