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Hunan Tianying Drilling Machine Manufacturing Co.,Ltd.  

tricone bit,PDC bit,rock drilling bit,rotary cone head
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  Products
Factory Supply Three Cone Bits For OilGasWater Well Drilling $1200.000已售
TCI Rotary Cone Rock Roller Drill Bit with sealed bearing $2270.000已售
Factory provide high quality TCI rotary tricone drill bit $1580.000已售
IADC637 Tri-cone Drill Bit with journal bearing $2080.000已售
9 7/8inch 250mm IADC645 Tricone Drill Bit $1580.000已售
IADC 537 270 MM Factory Supply Tricone Rock Roller Bit $1480.000已售
IADC725 tricone Bits For Oil Well Drilling $1500.000已售
IADC545 TCI rock roller tricone drill bit for drilling $1150.000已售