MD-40
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Door size :W 800/900/1000, H 2000/2100, T 60mm
Frame :Formed 14-ga steel
Weight :130-165 kg.
Acoustic class :STC46 (ASTME90-99)
Panel details : 16-ga steel damped with acoustic board and hollow core filled
with sound absorption materials. Flexible acoustic sponge
gasket installed in all 3 sides of frame, whereas class-3 ADR
retractable seal installed at the bottom.
Application :Lecture room, Convention hall, Concert hall, Studio record
room, Plant room
