The seating is made of flame retardant polyurethane foam, injected upon steel frames.

这个沙发是由插在钢架上的阻燃聚亚安酯泡沫做成的。

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So, polystyrene foamed plastic and polyurethane hard foam to the flame retardant function to ensure the whole system how much the fire prevention safety?

那么，聚苯乙烯泡沫塑料和聚氨酯硬质泡沫材料的阻燃机能达到何等程度才能保证整个体系的防火安全？

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Polyurethane foam in essence are highly flammable materials, do not make flame retardant processing the oxygen index is only 16.5%.

聚氨酯泡沫本质上属于高度易燃材料，未做阻燃处理时氧指数仅为16.5％。

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