Polyester thread is also called high-strength thread. It is usually called (bead light). Which is wear-resistant, low shrinkage, and good chemical stability. Due to its high strength, good abrasion resistance, low shrinkage, good hygroscopicity and heat resistance, polyester yarn is corrosion-resistant, resistant to mildew, and does not worm. In addition, it has the characteristics of complete color and luster, good color fastness, no fading, no discoloration, and resistance to sunlight.