detail intruduction
| model | OS7907 |
| material | new PVC composite material |
| frame | full metal frame |
| armrest | 4D function armrests |
| mechanism | multi-function mechanism |
| gas lift | class 3/4 standard 80mm down 4 |
| base | 350mm new black big base |
| wheels | 65mm PU casters |
| carton size | 85*66*36cm |