1, different materials: nylon thread is generally made of polyester chemical fiber, while carbon thread is made of carbon fiber.

2. Different strength: Because of its high hardness, carbon fiber is slightly stronger than nylon fiber, especially for some larger fish species, carbon fiber is more suitable.

3. Different hardness: carbon fiber has higher hardness and slightly rougher hand feeling than nylon fiber, while nylon fiber is more flexible and has better hand feeling.