| Ort der Herkunft |
Jiangsu China (Mainland) |
| Marke |
chenlong |
| Modell-Nummer |
NC23 NC26.. |
| Geben |
Drill Kragen |
| Maschine Typ |
Bohren Werkzeug |
| Zulassung |
API |
| Material |
Manganhartstahl |
| Verwenden |
Brunnenbohrungen |
Drill tool lifting sub is the special tools for lifting of the drill tools in petroleum, natural gas industry and geologic exploration. Drill tool lifting sub is divided into a or b type struture. The a type has 18 degree shoulder, the b type has 90 degree shoulder. The lifting sub can be selected according to elevator structure. Integral lifting subs are made of high strength alloy steel. All connections are coplied with API Spec7-1.