Product details
HEBEI CROSSING DRILL BIT MANUFACTURE
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Product description
Single roller cone bit for core barrel
size :8.5inch
IADC:537,617,637,737
Application:Core barrel with roller cone,cutter,tricone plam,to build hole opener,rock reamers
Formation:medium hard,hard rock: granite,shale,limestone
Foundation Roller cones:
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HEBEI CROSSING DRILL BIT MANUFACTURE