Plastic drag chains for machine tools can be classified into ordinary drag chains and drag chains based on their noise coefficient; According to their form, they can be divided into ordinary drag chains, parallel drag chains, and S-shaped drag chains; According to the raw materials, it is divided into original packaging plastic and recycled plastic. Material: Reinforced nylon, with high pressure and tensile load, good toughness, high elasticity and wear resistance, flame retardancy, stable performance at high and low temperatures, can be used outdoors. The amount of nylon content determines the strength and wear resistance of the drag chain, as well as the noise level during operation. The nylon content ranges from 5% to 17%, but does not exceed 19%. Generally, the content is around 30%.