acoustic boards 1)Wide range of applications 2)Good decorative 3)Easy to install 4)too many materials and colors ... ,middle.and high noise .3. fireproofing,no sands pollution ,strong decorative ,easy to construct , high environmental protection etc ,and it’s ... package used by the sponge used to do high-end furniture, sponge, good elasticity, density is 1.5 times the normal ...