1.100% poly poly core spun thread 2.strength is 15%-20% 3.good core evenness,natural touch 4.used for ... order! From china factory, our 100% poly poly core spun thread is made of special type of high ... by unique spinning processes. Outstanding Feature1) good core evenness and natural touch;2) strength is 15% to 20%, higher ... 2,12s/3,13s/3,15s/2,17s/2,20s/2,20s/3,28s/2,28s/3,30s/2,30s/3,40s/2,45s/2,50s/2 ...