Study by experiment.1. results of the sound absorbent material that explores the popular markets include: 1.1 a CU kafom consciousness means sponge for SAP sound.Foam or foam plastic 1.2 refers to the use of the substance through a plastic expansion caused the gas in the body cavity and plastic foams can be divided by 3, according to the type of materials used in the production of Polyethylene and Polystyrene, Polyurethane foam, is.The egg-crate paper 1.3 refers to the packing material for cushioning. There is a hole as fit only to eggs, which are made from paper.The results of experimental sound absorption materials by measuring the sound level, see.A CU consciousness kami ability to absorb sound in sound absorbent materials mentioned above.
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