Product features:
1. The welding end adopts a 30 ° butt welding interface.
2. Suitable for large surface casing sizes ranging from 12-3/4 "to 30" and shallow well technical casing.
| Specification (mm)/(in) | Outer diameter (mm) | Inner diameter (mm) | Height (mm) | Water eye diameter (mm) | Pressure bearing capacity (M Pa) | Single weight (KG) | Drawing No | |
| 325 | 2012/3/4 | 325.4 | 309 | 610 | 70 | 35 | 100 | FCWCTIN325 |
| 508 | 20 | 531.2 | 485.7-475.7 | 650 | 70 | 21 | 310 | FSBCL340 |
| 600 | / | 600 | 565 | 600 | 70 | 14 | 372 | FCWCTIN600 |
| 610 | 24 | 630 | 594 | 550 | 70 | 14 | 368 | FSWCT610 |
| 711 | 28 | 716 | 673 | 750 | 70 | 14 | 594 | FSWCTIN711 |
| 762 | 30 | 762 | 712 | 930 | 70 | 14 | 890 | FSWCLDV762 |
| 914 | 36 | 920 | 876 | 875 | 70 | 14 | 1050 | FSWCT914 |