Beijing Metalwork Tecnology Trade Co.,Ltd.

Trading Company(1)

Beijing Metalwork Tecnology Trade Co.,Ltd.

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drill tools
Specification: 3-14" drill collars
Detail: The drill collars are made of 4145H modified chromium-molybdenum alloy steel acc. to API SPEC 7 and SY/T5144.

drill tools and forging
Specification: 3-1/2"~ 9"
Detail: non-magetic drill collar


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