啊灬啊灬啊灬快灬高潮了听书,99久久婷婷国产综合精品青草免费,肉人妻丰满av无码久久不卡,韩国av片永久免费

Environment friendly flame retardant, used in flame retardant finishing of cotton or polyester fabrics, gives excellent flame retardant effect to the fabric. After treatment, the fabric has no continuous burning and smoldering phenomenon, low volatility, non-toxic, good washing resistance, and can still maintain good effect after repeated washing