| Description | |
| Model name | Har820 Sprocket |
| Brand | Hairise |
| Material | POM |
| Business Type: | Manufacturer |
| Size | All size could be available |
| Certification | ISO9001:2000 |
| Type | Z | da(mm) | DF(mm) |
| Har-820-19T | 19 | 117 | 25/30/35/40/45 |
| Har-820-21T | 21 | 129 | 25/30/35/40/45 |
| Har-820-23T | 23 | 142 | 25/30/35/40/45 |
| Har-820-25T | 25 | 154 | 25/30/35/40/45 |