black sound proof foam 1.black sound proof foam 2.material:pu foam 3.sound-absorbing effect is good

black sound proof foam1.black sound proof foam2.material:pu foam3.sound-absorbing effect is good

4.reasonable price

5.we can choose its size,and density according to customer's requirement.

6.it is eco-friendly to environment,and  no harm to user's health.

black sound proof foam