1) 100% Spun Polyester Sewing Thread 20/2,3,4--80S/2,3,4 2) 100% Spun Polyester Yarn 20/1--60/1 ... Fiber and Bright Fiber, Raw White,Optical White,Bleach White 2. Poly/Poly (Poly/Cotton) Spun Core Sewing Thread and ... Dyed Core Yarn 20S/2,3--80S/2,3 3.100% Spun Polyester YarnVirgin&Recycled20/1-40 ... : wenjing_sk high tenacity for 100% spun polyester sewing thread 30/2 raw white