Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1 API 7-1
Model API 7-1
Overview
Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1 API 7-1, from Shijiazhuang Coal Mining Machinery Co., Ltd in Shijiazhuang, Hebei. Published figures include certification API, standard API 7-1 and surface treatment spray-painting.
Technical specifications
| Certification | API |
|---|---|
| Standard | API 7-1 |
| Surface treatment | spray-painting |
| Material | good quality steel |
