... polyester sewing threads, spun polyester sewing threads, polyester spun yarn. specifications contain 60s/2, 60/3, 50/2, 50/3, 40/2, 40/3, 30/2, 30/3, 20/2 ... % polyester spun sewing thread semi dull 32S/2. CountNormal counts:20s/2/3/4/6,30s/2/3,40s/2/3,42s/2,50s/2/3,60s/2/3• Material100% Polyester ... produce them, such as special count, grade, color, and others. 40s/2 Polyester Sewing Thread