A round rod is an object with a cylindrical shape, usually made of metal or plastic material. It has a uniform diameter and length and can be customized as required. Round bars are commonly used in the manufacture of various mechanical parts such as shafts, pins, threaded rods, etc. It can also be processed by cutting, drilling, turning, etc. to suit different application scenarios. Round rods are widely used in engineering and manufacturing and are popular for their simplicity and practicality.