... for sewing thread 1.Original materal 2.Good quality(eg:high strengh,no knots 20/2 100%polyester yarn for sewing thread ... 1.3D*38MM4. Main Technical index: Twist per meter:200-800 TPM Strength:7cn/Dtex Min4.Yarn Type : Spun5.Quanlity: High ... e-longation, brighter ,evenness.6.Model Number :20s/2,30s/2,40s/2,50s/2,60s/2,20s/3,30s/3,40s/3,50s/3 ...