Standard: API SPEC7
Materials:4145H, 4145H Mod and non-magnetic material
Types: Integral and Friction welded, Integral Heavy Weight Drill Pipe,Integral Spiral Heavy Weight Drill Pipe
Hard band: Arnco100XT, Arnco200XT and Arnco300XT; Botn1000, Botn3000, TCS8000, TCSTitanium, Armacor M etc. Also we can make according to customers' requirements.