Fabrics of Synthetic Fibers Alone or Mixed with Other Fibers

[ Synthetic Resins-Namely, Polyacrylonitrilic Resins and Copolymers of Acrylonitrile; ] Synthetic Fibers in General and in Particular Continuous Fibers and Fibers Under the Form of Flocks Totally or Partially Obtained from Polyacrylonitrilic Resins or Acrylonitrilic Copolymers