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