7019.13.05

Glass fibers (including glass wool) and articles thereof (for example, yarn, rovings, woven fabrics): Slivers, rovings, yarn and chopped strands and mats thereof: Other yarn, slivers: Yarns: Not colored: Fiberglass rubber reinforcing yarn, made from electrically nonconductive continuous fiberglass filaments 9 microns in diameter to 11 microns in diameter and impregnated with resorcinol formaldehyde latex treatment for adhesion to polymeric compounds