国内精品久久久久久久影视麻豆-中文字幕久精品免费视频-热久久国产欧美一区二区精品-极品尤物被啪到呻吟喷水

Flame retardant -- durable flame retardant finishing of fabrics

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 continu...