... 2 2.100% Spun Polyester Yarn Virging;Recycle 20s-30s-40s-50 1.100% Spun Polyester Sewing Thread and Dyed Yarn (TFO AND ... RING) 20/2,3,4----80S/2,3,4 and yarn 20 ... /1--80/1 Paper or Plastic Tube, Heat Set Yarn, Air Knot, Semi-Dull Fiber and Bright Fiber, ... White 2. Poly/Poly (Poly/Cotton) Spun Core Sewing Thread and Dyed Core Yarn 20S/2,3--80S/2,3