... a length of 30-50 meters. 1: sub-felt cloth material: polyester staple fiber and polypropylene staple fiber. 2: Felt ... , has a good wear resistance, can be used as polishing material. The products are widely used in mechanical, electrical, chemical, cement, ... field and other industries, such as stainless steel, cables, marble polishing; airplanes, cars, trains, ships, dust-proof windows and doors ...