Sewing thread Quality Approved:ISO9001 Speciafications(TFO and Ring twist):12/3, ... ,42/2,50/2 3,60/2 Sewing thread/spun polyester sewing thread/ raw white thread Quality Approved:ISO9001 Material : Polyester staple fiber ... fibre,so the sewing thread looks like more bright.Application: High speed sewing garment,curtain,glove ,cap,bedsheet ,blanket,shoes,art craft ...