This is our special niche product.This filter paper board very fit to filtrate 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, cut to any size according clientâs request.Pore size:0.2um,,0.45um,0.6um,0.8um,1um etc.