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feature Sound-absorbing effect is good,
function FR,Rohs,svhc
Uses Noise reduction
Industry Standard GB,BS-5852 or TB117
Ma
absorb a large number of incoming acoustic energy of the acoustic attenuation, reducing the interference and echo sound reflections ,improve the purity of the sound
wave crest sound sponge
Daye Tengfei Sponge Factory, Changzhou, China
polyurethane foamed plastics,
