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OD: |
89mm ( 3 1/2 inch) thread drill pipe from China supplier |
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Grade: |
E75/R780/G105/S135 |
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Length: |
(2~12.5 meters) |
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Wall Thickness: |
9.35mm |
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Connection: |
89mm(internal upset)/105mm(external upset) |
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Tool Joint: |
35CrMo |
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Apply to: |
well drilling,mining drilling,gas drilling |
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Safe drilling depth: |
Within 3000 meters |
Zhongxin company main products include: drilling equipments, And mainly manage manufacture the drilling equipment and accessories, specializing in the drilling machine, mud pump and well drill pipe, geological drill pipe, petroleum drill pipe, trenchless drill pipe and other products.
The company has the most advanced drill pipe upsetting equipments, straightening machines, continuous quenching furnace and a variety of molding process and machining equipments, as well as the product lines of drill pipes and connections, all the product lines equipped with the friction welding and bulk heat treatment equipments. Also configured the ultrasonic fault detector, the infrared thickness gauge, hardness tester, the screw thread gauge and other precision measuring instruments. The production strictly in accordance with API standard, and complete inspection and maintenance of production and inspection records, make each product of each working procedure have traceability, to ensure the high quality of the products. The company passed the certification ISO9001, can product American standard, European standard types of drilling tools, can also according to customer demand design, manufacture special specifications of the drill pipes.
Zhongxin widely services in geological exploration, oil, water conservancy, coal and other industries, products are exported to Middle East, Africa, Russia, South America and other countries and regions.