API Spec 7-1 Non-Magnetic Drill Collar 4 1/8"-Nc31
Hebei Shitan Machinery Manufacturing Co., Ltd.Base Info
- Model NO.:4 1,8"-NC31
- Manufacturing Process:Forging and Integral Heat Treatment
- Surface Treatment:Without Processing
- Operation Pressure:Atmospheric Pressure
- Material:Low Magnetic Stainless Alloy Steel
- Trademark:Shitan
- Specification:4 1,8"-NC31
- Origin:China
- HS Code:8431431000
Description