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12 1/4" (311.1mm) IADC637g Tricone Drill Bit, Tricone Rock Bit, TCI Tricone Bit

2025-04-13 introduction 2430
XMH
Polishing
Forging
Alloy Steel
High-Quality
Tricone Bit
API 7-1
Gloden
Global
Sinotai
Wooden Box
50KG
China
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