Chinese Standard Geological/Water Well Drilling Casing Tubes
- Description
- Inquiry
We supply many kinds of Chinese standard geological & water well drilling casing tubes, which are connected with casing coupling for both casing tube box threads.
| Standard | Size | ODXW | ID | Material | Remark |
| GB/T16950-1997 | 73 | 桅73×4.5 | 桅64 | DZ50 | Length and thread depends on custome鈥檚 demands |
| 89 | 桅89×4.5 | 桅80 | DZ50 | ||
| 108 | 桅108×4.5 | 桅99 | DZ50 | ||
| 127 | 桅127×4.5 | 桅116 | DZ50 | ||
| 146 | 桅146×5 | 桅136 | DZ50 | ||
| 168 | 桅168×6.5 | 桅155 | DZ50 |
