Leading Suppliers Globally for Drill String Tubing

Certainly, here are some of the well-known global suppliers of drill string tubing:

National Oilwell Varco: A leading provider of equipment and components used in oil and gas drilling operations.
Vallourec: A global leader in premium tubular solutions serving the energy industry.
Tenaris: Specializes in manufacturing and supply of steel pipe products for the energy industry, including drill string tubing.
TMK: A prominent global supplier of steel pipes for various industrial applications, including the oil and gas sector.
TechnipFMC: Offers a range of products and services for the energy industry, including drill string tubing solutions.
Weatherford: Provides innovative technology and services for the drilling and production sectors, including drill string tubing solutions.

These companies are renowned for their quality products and contributions to the drilling industry.