Tubing is a key component in oil extraction operations. The tubing is made from high quality steel billets, which are processed into tubes with specific diameters and wall thicknesses through an advanced hot rolling process. Subsequently, the tubes are subjected to rigorous non-destructive testing to ensure that there are no internal defects. In order to enhance the corrosion resistance, the tubing will be treated with a special anti-corrosion coating, which is tightly adhered to the surface of the tubing body, effectively resisting the erosion of complex media in the oil well. These processes guarantee the long-term stable operation of the tubing in the harsh oil well environment.