Stainless steel seamless pipe is a high-pressure and corrosion-resistant pipe with strong integrity and no welds, which is manufactured by hot rolling/cold drawing. In terms of its process, hot rolling includes heating, perforating, rolling, etc. of round tube billets, which is suitable for large-diameter pipes; while cold drawing improves accuracy through annealing and pickling, and the wall thickness tolerance can be controlled within ±0.1mm.