This industry comprises establishments primarily engaged in (1) manufacturing cellulosic (i.e., rayon and acetate) and noncellulosic (i.e., nylon, polyolefin, and polyester) fibers and filaments in the form of monofilament, filament yarn, staple, or tow or (2) manufacturing and texturing cellulosic and noncellulosic fibers and filaments. Texturizing cellulosic and noncellulosic fiber and filament made elsewhere--are classified in Industry 31311, Fiber, Yarn, and Thread Mills; and Manufacturing textile glass fibers--are classified in Industry 32721, Glass and Glass Product Manufacturing.