Place of Origin
Hebei, China
Machine Type
Drilling Tool
Processing Type
cold rolling
Product name
Top quality heat treatment nitriding API NC38 drill pipe thread types
Color
black or as per your request
Outer diameter
from 2 3/8" to 6 5/8"(50-168mm)
Thread type
2 3/8" API REG, 3 1/2" API REG (API thread, customized)
Length
R1-R3 or customized
End-Upset type
IU, EU, IEU
Application
for well drilling and Geological mining drilling
Production technology
Friction welding, nitrading, upsetting