... surface 3.high efficient noise insulation wave noise absorbing sponge effect is good, function FR,Rohs,svhc ... according to customer requirementsSizeProduction according to customer drawings featureSound-absorbing effect is good, functionFR,Rohs,svhcUsesNoise reductionIndustry StandardGB ... to provide accurate product and pricing and other information materials,Please send us the inquiry, inform us the ...