The Metal PU Fitting T-Joint 10mm 1/2" M is a type of connector used in pneumatic systems, designed for joining three sections of tubing. The "10mm" refers to the size of the tubing that fits into the T-joint, while the "1/2" M" indicates a 1/2-inch male thread, allowing the fitting to connect to other components with female threaded ports. The metal construction provides durability and resistance to wear, making it suitable for high-pressure environments. This T-joint fitting is commonly used in industrial or automation systems where reliable connections and efficient airflow are essential.