?Polyester Continuous Filament Leather Shoes Sewing Thread 300D/3This thread has been produced using specially filament yarn with high strength, low elongation, and low shrink ability. We use advanced production techniques to provide you with thread of superior quality that can be easily sewed and good seam quality.??Feature:? Bright color? Excellent Seam Strength? Excellent Strength Tenacity? Excellent Sew ability? Excellent Color Fastness? High Resistance to Abrasion? Excellent Seam Appearance?Classify & Usage:NoSpecificationRegular LengthMain Usages1150D3000Y, 3500Y, 5000YSewing thread for nylon zipper, great clothes leather products shoes,furnishings, car cushions and all kinds of ?bags, etc2150D*23000Y, 3500Y, 5000YSewing thread for leather, over locking,great clothes leather products shoes,furnishings, car cushions and all kinds of bags, etc3210D3000Y ,3500Y, 5000Y4210D*23000Y, 3500Y, 5000Y5250D? ? ? ? 3000Y,3500Y,5000Y6250D*23000Y, 3500Y, 5000Y7300D3000Y, 3500Y, 5000YSewing thread for leather, Leather shoes, ? Sofa,car cushion, handbag, etc8400D500Y, ?1000Y, 1500YSewing thread for leather, over locking,etc9500D500Y, ?1000Y,1500Ythread for label, leather shoe, Sofa,car cushion, handbag, 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 Reportfixed length (mm): 500 ? ? ? ? ? ? Speed (mm/min):1000 ? ? ? ? ? ? ? ? ? ? ? ? ? ?(210D1*3 for reference)Breaking Tenacity(CN)Breaking elongation(%)Breaking Strength (CN/tex)Breaking Time(s)1st3813.67020.98127.12006.292nd3663.24019.40122.10005.823rd3584.43019.24119.48005.774th3624.21019.45120.80005.83Min.? ? ?3584.43019.24119.48005.77Max3813.67020.98127.12006.29AVG3671.38019.76122.37005.92Irregularity Rate001.93003.03001.93003.03CV (%)002.72004.09002.72004.05