The advantage of metal hinges is strength. Detachable, users can choose left and right models according to their needs, and can match the installation effect of detachable and non detachable.
Specification
| Model | A | B | C | D | L | H |
| HS-3030 | 30 | 30 | 6.5 | 7.2 | 60 | 50 |
| HS-3040 | 30 | 35 | 6.5 | 7.2 | 60 | 50 |
| HS-4040 | 30 | 40 | 6.5 | 7.2 | 60 | 50 |

Production
