At present, China's domestic market is mainly nylon chips classification (by purpose): 1, fiber grade chips, can be used for spinning textile yarn, underwear, socks, shirts, etc; for industrial yarn spinning, make tire cord, canvas line, parachutes, insulation materials, wire nets, safety belts and so on. 2. Slice grade engineering plastics, can be used for the production of precision machinery gears, housings, hoses, oil containers, cable sheathing, textile industry equipment parts. 3, film grade chips can be used in the packaging industry, such as food packaging, medical packaging. 4, nylon composite materials, including impact nylon, reinforced nylon and other high temperature for the production of appliances with special needs, such as increased temperature nylon used to make the impact of drilling, such as lawn mowers.