https://www.anmeiplastics.com/products/nylon-66-pa66/ Nylon 66 is polyamide 66. The main purpose of Nylon 66 plastic modification is to improve the properties of Nylon 66 material based on the original resin properties to meet specific requirements. The chemical and physical properties of Nylon 66 PA 66 are very similar to Nylon 6, so the modification method is similar. Anmei modified Nylon 66 series includes flame retardant, reinforced, toughened and other modified products.