| Partition size(mm) | Sound insulation coefficient(STC/RW) | Fire resistance time | Top and bottom expansion and contraction | Expansion plate | Adaptive track pulley | |||
|---|---|---|---|---|---|---|---|---|
| Net thickness | height | width | Top and bottom virtual position(mm) | Telescopic mechanism | ||||
| 86 | 2000-6000 | 800-1220 | 43-51DB | 2H | 0-25 | Micro DC motor | External Expansion/Internal Expansion/Internal Expansion | #260/#140/#130/#126/#110 |
