Applications:
They are mainly used in concert halls, business centers, recreation ground,
hotels, conference rooms, factory workshops, accessories, and dwelling
houses, underground engineering that need fireproofing and sound insulation
with index over la>30dB.
Specifications:
1) Rate of fire resistance: Grade A>1.2 hours; Grade B>0.9 hours;
Grade C> hours
2) Performance in sound insulation: sound volume insulated: RW>30dB
Materials:
1) Steel fireproof and sound insulating doors:
a) Door surface: top quality steel plate, thickness over 1.0mm
b) Frame: top quality steel plate with thickness over 1.5mm. Angle iron
is welded inside the frame for reinforcement
c) Thickness of the door: 65mm.The two layers between the surface are
stuffed with
2) Glass wool or mineral wool wrapped in glass fabric
3) Fireproof material, that is aluminum silicate fiber
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