This product is the production base of Flat Fiberglass Filter Cloth, It is of C-alkali ball as main raw materials, By drawing, solution, twisting ,the filament diameter is 5um,5.5um,6um,8um,9um several series of yarn twist, the size type, number of strand, twist, direction of twist, Packing (paper tube take-up, bottle package) according to customer's requirements.