Base Info
- Model NO.：non-magnetic steel drill collar
- After-sales Service：Distance
- Warranty：in 65 Days
- Manufacturing Process：Forging
- Surface Treatment：Sand Blast
- Operation Pressure：Atmospheric Pressure
- Material：Alloy
- Raw Material：V-150 4137 35CrMo 40cr E75 AISI4340
- Od：up From 3-3,8′′
- Trademark：non-magnetic steel drill collar
- Transport Package：Export Packing
- Specification：forged st52 steel drill collar
- Origin：Jiangsu China
- HS Code：73260
Description