Bolting Cloth Flour Milling Mesh with Fine Sifting and Filter Property: A Kind of Monofilament Thread Woven Fabrics, Suitable for Flour Milling. Flour milling is a process of grinding and separating, done by roller-mills, sifters and purifiers. Hebei Reking offers a wide range of high-quality, sifting fabrics and bolting cloths for Flour Milling Mesh applications. Our Flour Milling Mesh product line is carefully adapted to the special requirements of the flour milling industry.