surface casing
| string
| surface casing | |
| dril. | Ankerrohr; Standrohr |
| string | |
| gen. | Kette; Saite; Schnur; String; Stringtanga; String-Tanga |
| |||
| Ankerrohr n; Standrohr n | |||
|
surface casing : 2 phrases in 2 subjects |
| Mining | 1 |
| Technology | 1 |