Stainless steel spray gun straight tube is a key component widely used in the industrial field, whose main function is to effectively guide fluid or gas from the inlet of the spray gun to the nozzle, in order to achieve precise spraying or spraying. This straight pipe is made of high-quality stainless steel material, and its inner wall is precision polished to reduce fluid flow resistance and friction. Fluid dynamics design optimization can reduce eddy currents and resistance in fluid flow, improve spray efficiency and uniformity, and thus enhance work efficiency. During long-term use, the straight pipe of the spray gun may experience wear due to the high-speed flow of liquid or gas. However, the hardness and wear resistance of stainless steel enable it to resist these wear and maintain long-term structural integrity and functional stability. When handling chemicals, its corrosion resistance ensures that the pipeline will not react with the chemicals, thereby avoiding damage and leakage of the pipeline. This makes it particularly important in applications such as chemical treatment and acid-base liquid transportation.