CBM-SBM mat is mainly used as the surface layers of FRP products. It is characterized by uniform fiber dispersion, smooth surface,soft hand-feeling, lowbinder content, fast resin impregnation and good mould obedience. This line of product falls into two catalogues: filament winding type CBM series and hand lay-up type SBM series .CBM surfacing mat is most suitable for warpping FRP Pipes and vessels because it is capable of significantly improving the performances of surface layer to realize longer lifetime and resistance against corrosion, leakage and compression.SBM surfacing mat is suitable for moulding with sophisticated contours while it is characterized by its good mould obedience and fast resin saturating, it is indispensable materials for high quality moulds and FRP products as it is capable of covering up the texture of underlayers to create high gloss surface that give rise to improved strength and corrosion resistance .the surfacing mats in these two categories are also applicable to other FRP moulding process such as press moulding spary-up,centrifugal rotaing moulding,ect.