| After-sales Service: | 1year |
|---|---|
| Warranty: | 1year |
| Manufacturing Process: | Forging |
| Surface Treatment: | Polishing |
| Material: | Alloy |
| Standard: | API 7-1 |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier 1. API certified product with national best quality
2. Forging type products used for lifting pipes collars, with regular thread connection
3. Customized products available
4. Warranty 6month after sale
| Connection | O.D.(mm) | Length(mm) | Connection | O.D.(mm) | Length(mm) |
| 7 5/8 REG Pin | 210 | 290 | 7 5/8 REG Box | 230 | 290 |
| 6 5/8 REG Pin | 190 | 280 | 6 5/8 REG Box | 200 | 280 |
| NC50 Pin | 155 | 270 | NC50 Box | 160 | 260 |
| NC46 Pin | 150 | 270 | NC46 Box | 160 | 260 |
| NC38 Pin | 115 | 260 | NC38 Box | 120 | 270 |
| NC31 Pin | 100 | 210 | NC31 Box | 120 | 220 |
| 2 3/8 REG Pin | 80 | 190 | 2 3/8 REG Box | 110 | 200 |
| NC26 Pin | 89 | 200 | NC26 Box | 110 | 200 |
| 3 1/2 REG Pin | 100 | 220 | 3 1/2 REG Box | 130 | 270 |
| 4 1/2 REG Pin | 145 | 260 | 4 1/2 REG Box | 160 | 260 |
| 2 7/8 EUE Pin | 80 | 220 | 2 7/8 EUE Box | 80 | 220 |
Suppliers with verified business licenses
Audited Supplier 
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