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Product Name: |
Drill tools
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Specifications |
3-14" drill collars |
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The drill collars are made of 4145H modified chromium-molybdenum alloy steel acc. to API SPEC 7 and SY/T5144. |
Company: |
Beijing Metalwork Tecnology Trade Co.,Ltd.
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Contact: |
Mr. Wang Jack |
Address: |
Maliandao, xuanwu distract, beijing ,china |
Postcode: |
100055 |
Tel: |
86-010-63484851 |
Fax: |
86-010-63484851 |
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