Features: 1) Metallic thread, 2) Rayon embroidery thread 3) Spun polyester sewing thread 4) Polyester high tenacity sewing t Features:1) 100% spun polyester sewing thread: 20/2, 3 30/2, 3, ... 50/2, 3, 60/2, 3 80/2, 32) 100% polyester high tenacity sewing thread: 120D/2, 150D/2, 3, 210D/2, 3, 250D/2 ... , 10,000y, 15,000y, 250g6) 100% cotton combed and mercerized sewing thread: 40/2, 3, 50/2, 3, 60/2, 37) ...