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Korea 14 3/4" 5 blades PDC bit
Korea 132mm 3 blades diamond bit
Korea 4 blades PDC diamond bit
Korea roller cutters for rock reamer
Korea replaceable roller cones for reamer bit
Korea 7 7/8”3 blades diamond PDC bit
Korea 12 1/4inch Hybrid drill bit
Korea 17 1/2inch Hybrid pdc drill bit
Korea 9 7/8 tricone bit for mining,iadc825
Korea 26inch steel tooth bit iadc115
Korea 8 3/4inch pdc bit,steel body, 4 blades
Korea 12.25 IADC317 steel tooth tricone bit
Korea 12.25 IADC127 tricone roller bit
Korea 12.25 IADC126 steel body PDC bit
Korea 12.25 IADC117 steel tooth tricone bit
Korea 8.5 IADC127 milled tooth tricone bit
