9 7 8 tricone bits, 9 7 8 tricone bits Suppliers and ...
Tricone bits 9 7/8'' (250.8mm) IADC 517 tci manufacturer selling directly NHA517GKT. US 1072 Piece. 1 Piece (Min Order) 2 YRS Hebei Haoqi Drilling Equipment Co., Ltd. 100.0%. 3.3 (2) Contact Supplier. 1/2. diameter 250mm IADC635/735 roller bearing JZ carbide tooth tricone rock bit for mining/drilling.
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