Polyester Filament Sewing Thread This thread has been produced using ... , etc10630D500Y, 1000Y,1500Ythread for label, Knitting, Sewing,Weaving, etc11840D*3300Y, 500Y,1000Ythread for label, Knitting, Sewing,Weaving, Mattress etc121000D*3300Y, 500Y ... , 800Ythread for label, Knitting, Sewing,Weaving, etcStrength Testing Report fixed length (mm): 500 ...