... /2-40/2/3-50/2 2.100% Spun Polyester Yarn 20/1-30/1-60/1 3.Poly/Poly 1 ... .100% Spun Polyester Sewing Thread and Dyed Yarn(TFO AND RING) 20/2,3,4----80S/2,3 ... /1--60/1--80/1 Paper or Plastic Tube, Heat Set Yarn, Air Knot,Semi-Dull Fiber and Bright Fiber, Optical White2 ... /Poly (Poly/Cotton) Spun Core Sewing Thread and Dyed Core Yarn 20S/2,3--80S/2,33. Fabrics or Various Specifications ...