The seating is made of flameretardantpolyurethane 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。
2
So, polystyrene foamed plastic and polyurethane hard foam to the flameretardant 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？
3
Polyurethane foam in essence are highly flammable materials, do not make flameretardant processing the oxygen index is only 16.5%.