The design and production of the prduct completely meets the requirements of API Spec 6A《Wellhead and Christmas tree specification》.In accordance with API Spec 6 A specification form a complete set of equipment.
Basic：
| Nominal Diameter | 2-1/16"～4 -1/16" |
| Nominal Diameter | 2000Psi～20000Psi |
| Material Class | AA～HH |
| Specification Grade | PSL1～4 |
| Performance Grade | PR1～2 |
| Working Medium | oil、gas、mud |
| End Connection | API Spec connection |
