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Tricone Bit Oil Well Tricone Bit 14 3/4' IADC517G TCI Tricone Bit Used For Oil Well Drilling . US 4450-4500 Piece 1 Piece ... 14 3/4'' IADC CODE 537 oil well drilling rock tricone bit. US 3500-3500 Piece 1 Piece (Min. Order) 9 YRS . Hejian Hengji Bit Manufacture Co., Ltd. ...
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