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Place of Origin:Hebei,China.
Size:8.5inch(215.9mm).
Material:Tungsten Carbide.
Type:Drill Bit.
Machine Type:drilling machine
Layer information:Soft to Media hard formation
Transportation:Ship,Plane,Truck,Train as your requirements
215.9mm 8 1/2" tungsten carbide tricone bit for coal mining
Hejian Fist Petroleum Equipment Co.,Ltd
PDC drill bits, including elevators, tongs, drill pipe, rings, mud pump,...
