201: As a substitute for 300 series stainless steel, it has been studied and produced, and has certain acid resistance, alkaline resistance and high density.

304: Good processing performance, high toughness, good comprehensive performance, is a universal stainless steel.

304L: Ultra-low carbon stainless steel, good overall performance.

316: Austenitic stainless steel, containing Mo, corrosion resistance and high temperature strength, mainly used in pipes, dyeing equipment materials.

321: The performance is similar to 304 stainless steel, with the addition of titanium, better intergranular corrosion resistance.