(A) factory direct, specializing in the production of superior quality and superior sound-absorbing cotton polyester fiber (b) Specification: 2000 * 1000 * 50mm. Price per square price, the whole from the sale. (C) the effect of super absorbing, high-quality choice for many construction decoration! High-density polyester fiber sound-absorbing cotton / sound-absorbing cotton Super Wall / KTV sound-absorbing cotton performance: 1 compression set resistance 2% (GB / T10295-1988); 2,45 degrees combustion: flame retardant grade (TB / T2402 -1993); 3, the noise reduction coefficient NRC≥0.76 (GB 47-83); 4, hydrophobic rate: 98% (GB / T10299-1988); 5, water vapor permeability index was 2.46 * 10-6g / m .s.Pa (GB / T17146-1997). Advantages folding Edit this paragraph 1.100% environmentally friendly products, 100% recyclable 2. rugged, easy to use tasteless, waterproof, moisture-proof, breathable performance, easy processing, can be made into various shapes according to the different needs of long life 3. No rot, can withstand a variety of microorganisms, fungi, acids, salts and hydrocarbons in the production process corrode 4. Do not add any additives, adhesives use folding Edit this paragraph 1, instead of rock wool or glass wool used lightweight metal frame plasterboard partition wall structure; 2, instead of sponges for KTV, cinemas, discos and other entertainment acoustic soft bag; 3, for the studio, audiometry room, interrogation rooms and other places of acoustics decoration and renovation. Edit this paragraph fold difference fiberglass sound-absorbing cotton and polyester fiber sound-absorbing cotton difference between the two products are different, sound-absorbing effect is basically the same, but the glass fibers are not environmentally friendly, does not facilitate the construction, everybody knows where to get the itch, polyester Not a bad little flame retardant fibers, fire can be incredible, still love than wood burning, and if you go out the door of the compound used, can run out ah, if you do not basement karaoke use, when to burn choking dead, so what's the view we all talk about, probably cheaper 65-105 polyester fiber glass fiber and more sound-absorbing cotton polyester fiber meltblown fine fibers, a diameter of 1-4 m by the ultra-fine fibers and short fibers having a diameter of 20-30 microns of non-woven material composition. Blowing melt processing methods can be implemented in a more subtle light fibers, bulkiness of quality products.