Mr. Li Weiwei
Address:
Room1403, Building a. 10, Jincheng Oriental International Cbd Neihuan Road, Zhengdong New District, Zhengzhou, Henan, China
Telephone:
Zip Code:
Fax:
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Account Registered in:
2013
Business Range:
Industrial Equipment & Components, Manufacturing & Processing Machinery
Management System Certification:
ISO 14001, ISO 9001
Business Type:
Trading Company
Main Products:
Oil Drilling Equipment, Non Magnetic Stabilizer, Ductile Cast Iron Pipes
Company Introduction
The drill collars are made of 4145H modified chromium-molybdenum alloy steel acc. To API Spec. 7 and SY/T 5144. All threads can be phosphated, copperized or cold worked. All threads are machined with CNC Lathes-Double-shouldered and special threads. And a special the max diameter of drill collar is 14 inch.
