This is our special niche product. Food grade. This filter paper board is very suitable for filtrating wine in the wine factory. Conforming to FDA, be used for filtration in producing of wine. Thickness:3.8mm, Size:300*300mm,367*367mm,400*400mm,600*1220mm,1000*2000mm,etc.or cut to any size according client s request. Pore size:0.2um,,0.45um,0.6um,0.8um,1um etc.