Suppliers with verified business licenses
Sort | Description | Upper Connection Part | Lower Connection Part | Type |
1 | Kelly cross-over sub | Kelly | Drill pipe | A or B |
2 | Drill pipe cross-over sub | Drill pipe | Drill pipe | A or B |
3 | Interim cross-over sub | Drill pipe | Drill collar | A or B |
4 | Drill collar cross-over sub | Drill collar | Drill collar | A or B |
5 | Drill bit cross-over sub | Drill collar | Drill bit | A or B |
6 | Swivel cross-over sub | Swivel lower sub | Kelly | C |
7 | Fishing cross-over sub | Kelly | Drill pipe | C |
Drill pipe | Fishing tools | C |
Suppliers with verified business licenses