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Beijing Metalwork Tecnology Trade Co.,Ltd.
Showing 1 - 2 of 2, total 1 pages [First] [Previous] [Next] [Last]
1
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.
2
drill tools and forging
Specification: 3-1/2"~ 9"
Detail: non-magetic drill collar
Showing 1 - 2 of 2, total 1 pages [First] [Previous] [Next] [Last]
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Tel : 86-010-63484851 Fax : 86-010-63484851
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