... , thick, stiff, to achieve different thickness to meet the requirements. Needle felt cloth is molded by a synthetic process done through the ... needle, the general width of 1-4 meters and a length of 30-50 meters. 1: sub-felt cloth material: polyester ... , seal, gasket, and spring steel wire cloth at the end of the needle felt material; 2, felt stable in structure, easy to loose, and ...