English
technical specification：
| ID（mm） | Cord fabric layers | Spiral wire diameter（mm） | Nozzle length（mm） | Hose length | |||
| DN | tolerance | DN | tolerance | DN（mm） | tolerance（mm） | ||
| 38 | 0.8 | 2 | 2.0 | 75 | 10 | 20 | ±50 |
| 51 | 0.8 | 2 | 2.6 | 100 | 15 | 20 | ±50 |
| 64 | 0.8 | 3 | 2.6 | 100 | 15 | 20 | ±50 |
| 76 | 0.8 | 4 | 2.6 | 100 | 15 | 20 | ±50 |
| 89 | 0.8 | 4 | 3.2 | 100 | 15 | 20 | ±50 |
| 102 | 0.8 | 4 | 3.2 | 125 | 20 | 20 | ±20 |
| 127 | 0.8 | 5 | 3.2 | 125 | 20 | 20 | ±20 |
| 152 | 0.8 | 5 | 4.0 | 150 | 20 | 20 | ±20 |
| 203 | 2.5 | 6 | 5.0 | 200 | 25 | 10 | ±20 |
| 254 | 2.5 | 7 | 5.0 | 200 | 25 | 10 | ±20 |
| 3.5 | 2.5 | 7 | 5.0 | 250 | 25 | 10 | ±10 |
| 300 | 2.5 | 7 | 5.0 | 250 | 25 | 10 | ±10 |
| 350 | 2.5 | 8 | 5.0 | 250 | 25 | 10 | ±10 |
| 400 | 2.5 | 8 | 5.0 | 300 | 25 | 10 | ±10 |
| 500 | 2.5 | 8 | 6.0 | 350 | 25 | 14 | ±10 |
| 600 | 2.5 | 8 | 8.0 | 350 | 25 | 14 | ±10 |
| 700 | 2.5 | 9 | 8.0 | 400 | 25 | 14 | ±10 |
| 800 | 2.5 | 10 | 8.0 | 450 | 25 | 14 | ±10 |
| 900 | 2.5 | 14 | 8.0 | 450 | 25 | 14 | ±10 |
| 1000 | 2.5 | 14 | 8.0 | 450 | 25 | 14 | ±10 |
