In the use of centrifugal glass wool in buildings、 the surface often needs to be decorated with a certain sound transmission effect、 such as plastic film、 metal mesh、 window screen、 fireproof cloth、 glass fiber cloth、 etc. less than 0.5mm、 which can basically maintain the original sound absorption characteristics. Centrifugal glass wool has excellent properties such as fire resistance、 insulation、 and ease of cutting、 making it one of the most commonly used materials for building sound absorption. However、 due to the lack of decorative properties on the surface of centrifugal glass wool and the possibility of fiber scattering、 various sound-absorbing components must be made for concealed use. The most commonly used and cheapest construction is the suspended ceiling of perforated paper gypsum board or the perforated wall filled with centrifugal glass wool. When the perforation rate is greater than 20%、 the sound absorption performance of centrifugal glass wool can be fully utilized. To prevent the spillage of glass wool fibers、 it is necessary to attach a layer of soundproof fabric such as non-woven fabric or mulberry paper to the back of the perforated board、 or wrap the glass wool with glass cloth、 plastic film、 etc. Similar panels to perforated paper gypsum board include perforated metal board (such as aluminum board)、 perforated wood board、 perforated fiber cement board、 perforated mineral wool board、 etc p>
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
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1. Telephone communication and confirmation of requirements
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1. The testing industry is fully covered、 meeting different testing needs
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