| Category | Metal sheet assembly |
|---|---|
| Description | D108mm, thickness 4mm Galvanized steel With M8 screw and lock Used for maintenance or operation of ventilation duct With rubber joint Airtight up to 2000 Pa in over-pressure and up to 750 Pa in under-pressure. |
Galvanized steel round hatch
For ventilation duct
Airtight with rubber joint
