304 stainless steel is the most widely used chromium-nickel stainless steel, 304 stainless steel pipe has good corrosion resistance, heat resistance, and physical characteristics of strength does not decrease at low temperature. It is less affected by acids or alkalis in the atmosphere, and if it is a heavy industrial area, then it needs to be cleaned in time to reduce the possibility of corrosion. It is suitable for the processing, storage and transportation of food. It has good processability and weldability. Part of the 304 stainless steel is food grade stainless steel, so it can also be used to make food production equipment, and can also be used to produce medical equipment.