Quick Details

• OE Experience:

  No

Product Name:Spiral drill collars

Spiral drill collars

Application

Oil drilling

Product Description:

Based on API Spec.7 and SY/T5144, the spiral drill collars are made of 4145H modified chromium –molybdenum alloy steel. All threads are phosphated, copper zed or cold rolled. All threads machined with CNC Lathes –Double –shoulderd, including some special threads. The maximum outer diameter of drill collars can amount to 14 inch.

Zhongyuan Special Steel Co. , Ltd, Built from 1970, Is located at the foot of Wangwu mountain in west Jiyuan city, Henan province, And adjacent to Xiaolangdi water control project on the Yellow River. Being approved by National Resource Committee of State Department, Technology and Industry ...[Read More]

Company Profile:

• Main Product:

  Forging. Mandrel Bar, Main Shaft For Wind Turbine And So On

• Business Type:

  Manufacturer

• Current Export Market:

  North America, South America, Western Europe, Eastern Europe, Eastern Asia, Southeast Asia, Mid East, Africa, Oceania

• Total Annual Sales:

  More than 100,000,000