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1.For soft, medium hard formation 2.Reliable bearing system for well drilling 3.API,ISO certificate 4.High quality, lowest price 5.Timely delivery |
$ 400.00 ~ 8000.00 / Pieces
 ChinaFree Member
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1.For soft,medium hard and hard formation 2.Reliable bearing system 3.API,ISO certificate 4.High quality,good service 5.Lowest price |
$ 600.00 ~ 6000.00 / Pieces
ChinaFree Member
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1Certified by ISO9001&API 2Used for water well, oil field 3IADC:114-117,127,437,517,617,637 4.type:3-8blades 5.delivery on time |
$ 250.00 ~ 10000.00 / Pieces
ChinaFree Member
|
 |
1.For soft,medium hard and hard formation 2.Reliable bearing system 3.API,ISO certificate 4.High quality,good service 5.Lowest price |
$ 500.00 ~ 5000.00 / Pieces
ChinaFree Member
|
