Used Drill collars Machine Tools in Shandong, China

High Quality!API Drill Collars/ Slick Drill Collar/ Pony Drill Collar

• Manufacturer: Drill collars

Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: D...