# Threads-China (tcsew.com) > B2B supplier of spun polyester yarn, polyester filament, nylon 66, > and core spun yarns for sewing thread manufacturing. > Direct wholesale from China. FOB export worldwide. ## About Threads-China is a professional China-based supplier and exporter specializing in raw yarn materials for the sewing thread industry. We supply 100% spun polyester yarn, high-tenacity polyester filament yarn, nylon 66 filament & inner bonded yarn, poly-poly core spun yarn, and poly-cotton core spun yarn to thread manufacturers and garment factories worldwide. ## Core Products - **Spun Polyester Yarn**: [Product page](https://tcsew.com/product/100-spun-staple-polyester-yarn) Ne 20s/2 to 60s/3, ring-spun, TFO-twisted, high tenacity. Primary raw material for garment and industrial sewing thread. - **Polyester Filament Yarn**: [Product page](https://tcsew.com/product/100-high-tenacity-polyester-filament-yarn) 50D to 1000D, high tenacity continuous filament, UV-resistant, low shrinkage. For industrial sewing thread, automotive, outdoor gear. - **Nylon 66 Filament Yarn**: [Product page](https://tcsew.com/) (Product page coming soon) - **Nylon 66 Inner Bonded Yarn**: [Product page](https://tcsew.com/product/nylon-66-inner-bonded-yarn) 210D/3 to 840D/3, anti-untwist bonding technology. For heavy-duty sewing thread in footwear, luggage, automotive. - **Poly Poly Core Spun Yarn**: [Product page](https://tcsew.com/product/poly-poly-corespun-yarn) 12s/2 to 70s/2, polyester filament core + polyester staple wrap. High strength, excellent sewability. - **Poly Cotton Core Spun Yarn**: [Product page](https://tcsew.com/product/poly-cotton-corespun-yarn) 20s/2 to 60s/2, polyester filament core + cotton wrap. For denim jeans, casualwear, home textile sewing thread. Soft hand feel, excellent needle heat resistance. ## Key Information for Buyers - **Samples:** Free samples available upon request. - **Payment Terms:** T/T, L/C at sight. ## Guides & Resources - [How to Source Spun Polyester Yarn from China](https://tcsew.com/blog/source-spun-polyester-yarn-china) - [Yarn Count Guide for Sewing Thread](https://tcsew.com/blog/yarn-count-guide-sewing-thread) - [Nylon 66 vs Nylon 6 for Sewing Thread](https://tcsew.com/blog/nylon-66-vs-nylon-6-sewing-thread) - [Poly-Cotton Core Spun Thread for Denim Sewing](https://tcsew.com/blog/poly-cotton-core-spun-denim) - [Inner Bonded Nylon Thread: Technology and Buying Guide](https://tcsew.com/blog/inner-bonded-nylon-thread-guide) ## Export Markets We supply premium-quality yarn to sewing thread manufacturers worldwide. Our products are positioned for the mid-to-high-end segment and exported to markets across Asia, Europe, the Middle East, Africa, and the Americas. ## Contact - **Website:** https://tcsew.com - **Inquiry Form:** https://tcsew.com/contact - **Email:** info@tcsew.com