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12 1/4 IADC 537 Tricone Roller Cone Drill Bit

2025-04-13 introduction 3390
12 1/4
Customized
AISI, API
Taper-length
Center Drill Bit
High Carbon Steel
Well Drilling
Drilling Tool
Forging
High-Efficiency ,Wear Resistant
Journal /Roller Bearing Bit
Medium Hard Formation
LONGYUE
Wooden Case
12 1/4
Hebei, China
8207199000
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