retardant pressure impregnation的意思|示意

美 / / 英 / /

阻燃压力浸渍

阻燃剂压力浸渍 ... fire-retardant preservative 防火防腐剂 fire-retardant pressure impregnation 阻燃剂压力浸渍 fire-retardant roof covering 阻燃屋面覆盖层 ...