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BZM-R magnetic single shot inclinometer
2017-01-13 19:59
magnetic single shot instruments are used to measure the well track in petroleum drilling and geological drillingtechnol
DRILL COLLAR
2016-11-01 14:31
DRILL COLLARThe drill collar is according to SY/T5144-1997 and API 7-1Specification forRotary Drill Stem Elements standa
Integral Spiral Blade Stabilizers
2016-10-25 01:12