Depending on the need, the fibers can be modified or specially treated to suit special uses. Such as heat resistance, light aging resistance, flame retardant, antistatic, antibacterial, etc. Various industrial sectors are widely used such as tire cord fabrics, conveyor belts, various ropes, safety mesh belts, covering tarpaulins, high-pressure hoses, various filter fabrics, geotextiles, building materials and reinforcement materials. Most of them are made of chemical fibers.