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Foam foam: with polyether foam molding, like foam bread, can be used manual horizontal foam machine, foam foam can be used cutting machine after slicing process, according to different requirements cutting thickness, foam foam can also adjust the hardness, the density of the cushion sponge is 25-28kg/m ~ 3. There is a kind of fire-proof sponge material in the sponge. In fact, before the foam is made, the fire-proof agent is added in the material formula, such as chlorine and bromine, which can produce smoke when the sponge catches fire, play a role in flame retardant.