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) | Top and bottom virtual position telescopic mechanism | ||||
93 | 2000-4000 | 800-1220 | 40-50DB | Optional fire-resistant glass | 0-25 | Screw type/jack | Five way inward expansion and contraction | #130/#126/#110 |