配方类型：	MISCELLANEOUS
配方说明：	Quick Collapsing Foam
配方组成：	Concentrate/90.0 Propellant 152a/10.0 Aerosol Hissing, Expanding & Collapsing Foam. This foam has a combination of the properties of both the expanding and collapsing foams. It discharges a liquid which immediately expands into a voluminous foam which is stable for only a few minutes and then collapses. An audible hissing noise is evident after the foam has been discharged which is due to the rapid coalescence of the gas bubbles in the foam and subsequent loss of prop

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