Multi-components High Pressure Foaming Machine HPM50/50/20/20type Four-components, Double-hardness High Pressure Foaming Machine The HPM50/50/20/20 machine is special designed for automobile seat cushion industry, to produce all the inner automobile seatcushion including fore-seat/backrest, backseat/backrest and headrest, equipped with 4 components tank and metering system ( polyol 1, polyol 2 and isocyanate1, isocyanate2) and 1 set of 4-components L-type dual-chamber mixing head. The component flow is controlled by flowmeter so that you can get different mixing ratio for the dual-hardness parts.