API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50
Hebei Shitan Machinery Manufacturing Co., Ltd.Base Info
- Model NO.：O. D. 177.8mm-NC50
- Manufacturing Process：Forging and Integral Heat Treatment
- Surface Treatment：Without Processing
- Operation Pressure：Atmospheric Pressure
- Material：Low Magnetic Stainless Alloy Steel
- Trademark：Shitan
- Specification：O. D. 177.8mm-NC50
- Origin：China
- HS Code：8431431000
Description