... : 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, 40/2, 3, 50/2, ... lock thread: 150D/1, 10,000y, 15,000y, 250g, 200D/1, 10,000y, 15,000y, 250g6) 100% cotton combed and mercerized sewing thread: 40/ ...