TWLT – Thermal Double Wall Twain Bend
Outer Shell: Solid Galvanized Steel
Inner Shell: Solid Galvanized Steel
TWLA – Acoustical Double Wall Twain Bend
Outer Shell: Solid Galvanized Steel
Inner Shell: Perforated Galvanized Steel
Insulation 25mm Or 50mm
Insulation Density 24 Kg/m3 As Standard
