... PP) needle felt , nylon monofilament HL needle felt filter cloth with special singed or glazed finish treatment, the needle ... the in-depth filtration. It has high ability of catching to the solid or the guley partcle. ... is mainly polyester or polypropylene . The width of the needle felt filter cloth mainly has 0.53m, 0.57m , ... 1m, 1.63m, 1.68m, 1.8m, 2m and so on, of ...