The main hot rolling equipment is designed and manufactured by INNSE, which adopts two-roll MPM process with an annual output of 450,000 tons.All kinds of hot-rolled seamless steel pipes with outer diameter of (38.0-245) mm, wall thickness (2.5-25) mm and length (6.0-14.63) m can be produced.At the same time, a step-in furnace heat treatment production line has been built in the 180 production line, which can adjust the quality, fire, tempering, fire + tempering.Two sets of magnetic flux leakage testing detectors and three sets of ultrasonic detectors.