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15 1/2" Tricone Bit Three Cone Bit Roller Cone Bit for Oil Well Drilling Drill Head
2025-04-13
introduction 4380
Tricone bits
Customized
API
Taper-length
Twist Drill Bit
Solid Carbide
Well Drilling
Customized
Feilong
Wooden Box
Customized
China
8431432000
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