Coiled tubing (CT) is a continuous length of small-diameter steel pipe that is widely used in the oil and gas industry for various applications, including drilling, workover, and intervention operations. The manufacturing process of coiled tubing is intricate and involves several key steps to ensure the final product meets the required specifications for strength, flexibility, and durability. This article will delve into the detailed process of how coiled tubing is made, supported by images and videos to enhance understanding.