Yarns and threads, for textile use

Fibers and threads made of plastics or synthetic resins for technical purposes, namely, for use in the manufacture of technical filters, paper sieves and conveyor belts; semi-processed synthetic fiber filtering materials in the form of pellets, rods, foils, foams, fibers, films and sheets for technical purposes, namely, for use in the manufacture of technical filters, paper sieves and conveyor belts