API Drilling Pipes
& Casing
API Drilling
Pipes
NNS provides a complete line of drill string products, including a full range of friction welded drill pipes in nominal sizes from 2-3/8” to 6-5/8” and in a wide range of wall thicknesses. Our TIANHE drill pipes adopt a strict quality control regimen to ensure total quality control from initial material qualification, in-process inspection to final out-going quality inspection. We ensure that each joint of drill pipe meets your needs for reliability, durability and performance.
API Tubing
And Casing
NNS offers a complete range of API Tubing which meet the standard API connections for oil production. Our API Tubing and Casing can be manufactured in all standard range lengths as per API, as well as in custom lengths for customer-tailored project applications. We keep the most frequently demanded sizes and grades on stock for immediate deliveries.
For special requirements, technical modifications to the standard requirements are available.
