
| Material | Alloy steel |
| Processing Type | Forging |
| Use | Oil production |
| Two kinds | Single-wing, Dual-wing |
| Matched choke | Positive choke , AQdjustable choke |
| Working pressure | 2000-15000Psi |
| Working temperature | -46°C ~121 °C |
| Specification level | PSL 1-2 |
| Performance level | PR 1-2 |
| Normal size | 2-1/16" to 4-1/16" |
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