... material: PSF 5.weight:1.667kg/cone Description:100% polyester yarn spun for sewing thread raw white both TFO and Ring, ... ,16s,20s,21s,30s,32s,40s,42s,45s,50s,60sTwists or zTechnical:OE/ Ring spun yarn MaterialPSFusage:articles for daily use ... cotton carding, drawing,spun yarnthis is QC department for testing meter weight, tear strengh , evennss above this is ISO9001:2008 100% polyester yarn spun for ...