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1.conical teeth and hard-facing
2.Reliable bearing system
3.Fast drilling rate
4.Strong cutting structure

Hejian Deris Petroleum Drilling Equipment Co., Ltd

[Related Keywords: steel tooth tricone bit iadc 216 ]

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1.conical teeth and hard-facing
2.Reliable bearing system
3.Fast drilling rate
4.Strong cutting structure

Hejian Deris Petroleum Drilling Equipment Co., Ltd

[Related Keywords: 6 1/2'' tci tricone roller rock bits ]

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1.conical teeth and hard-facing
2.Reliable bearing system
3.Fast drilling rate
4.Strong cutting structure

Hejian Deris Petroleum Drilling Equipment Co., Ltd

[Related Keywords: TCI rock tricone bit ]

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7 5/8" api pin 17 1/2'' tricone-rock-bits
1.seal journal bearing
2.Sizes rang from 3 7/8'' -26''
3.Cover all iadc code

Hejian Deris Petroleum Drilling Equipment Co., Ltd

[Related Keywords: iadc 517 tricone - rock - bits ]

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carbide tooth three roller bit
1.seal journal bearing
2.Sizes rang from 3 7/8'' -26''
3.Cover all all IADC code

Hejian Deris Petroleum Drilling Equipment Co., Ltd

[Related Keywords: 17 1/2'' iadc 617 tricone bit ]

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carbide tooth three roller bit
1.seal journal bearing
2.Sizes rang from 3 7/8'' -26''
3.Cover all all IADC code

Hejian Deris Petroleum Drilling Equipment Co., Ltd

[Related Keywords: carbide tooth three roller bit ]

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