Sanding paper with velcro/PSA,can be used in wood ,metal,high performance with competitve price Sand Paper Delta Features:Premium P-grated, heat treated aluminum oxide abrasive;Unique fibre-reinforced, B-wt latex-saturated backing;Water-based stearated, non-pigmented, No-Fil coating;Benefits:Superior life, fast cut rate, consistent finish;50%-60-%improvement in tear strength;Flexible; can be used ...