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Products > api drill collars > Beijing Metalwork Petroleum Technology Co.,Ltd | Similar Products

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api drill collars

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Non-magnetic Drill Collar: Detailed Product Description drill collar 1)O.D: 2-3/8"-20" 2.Grade:J55 K55 N80 P110 ect 3.Thread :NU EU STC LTC BTC 4.Standard: API 5CT... drill collar Materials of the Non-magnetic drill collars ...

Integral Heavy Weight Dill Pipe: Integral heavy wall drill pipe is of medium weight and similiar with the ordinary drill pipe, there are lengtherned joints at both ends. The raw material is AISI 4145HMOD alloy steel, the size is ...

Spiral Drill Collars: The spiral drill collars are made of 4145H modified chromium-molybdenum alloy steel according to API Spec 7 and aSY/T 5144 . All threads can be phosphated,copperised or cold worked. All threads are ...

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Non-magnetic Drill Collar