The red stuff that you often see being dropped from planes and helicopters is a chemicalretardant that contains phosphate fertilizer, which helps to slow and cool down the fire.
The physical and chemical properties, mechanical properties and fire-retardant properties were also given.
列举了涂料的理化性能、力学性能和耐火性能的检测结果。
3
PVC folding door with door physical light, heat, moisture, thermal insulation, fireretardant, sound insulation, acid and alkali resistance, corrosion resistance and chemical stability.