Q: Should I choose A2 or A4 stainless steel balls

A: A) Prioritize choosing the standard-compliant A2 (commonly known as 304) stainless steel. Generally speaking, it can meet the requirements of most usage environments.

B) In environments with higher corrosion requirements, such as petrochemical, chemical, nuclear power, and coastal areas, consider selecting A4 (commonly known as 316) stainless steel balls.