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FACTORY:Junziguan,Shijingcun Town, Hejian City , Hebei Province , China
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12 1/4" Inches Milled Teeth Tricone Drill Bit China Factory
12 1/4" Inches Steel Tooth Tricone Roller Bit
4 3/4" Inches Steel Teeth Exploration Tricone Drill Bit IADC126
9 7/8" Inches Steel Tooth Tricone Bit IADC127 for Drilling Soft Formations
10 5/8" Inches Mill Tooth Tricone Bit for Well Drilling
5 3/4"(146mm) Steel Teeth Tricone Bit IADC216 For Soft-Medium Formation Well Drilling
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