304L stainless steel plate is better than 304 in pitting corrosion resistance at welding points or other treatment places. 304L is more corrosion resistant, with excellent corrosion resistance, heat resistance, low temperature strength and mechanical properties; Good hot workability such as stamping meandering, no heat treatment hardening scene (no magnetism, application temperature - 196 ° C ~ 800 ° C), and excellent grain boundary corrosion resistance after 304L welding or stress elimination; It can also adhere to excellent corrosion resistance without heat treatment, and the application temperature is - 196 ° c-800 ° C.