superior quality soundproofing anti-fire sound insulation board
Features:
1.high sound insulation volume:highest can be 48 db,and the average is 37db.
2.environmental and fireproof:environmental class E1,absolutely do not contain asbestos,smokeless and non-toxic while burning,built a green and healthy living space;fireproof grade A(GB8624-1997A),good fire performance.
3.explosion-proof:can prevent outside impacting cause explosion,can be in damp environment.
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