How to distinguish 201 stainless steel from 202 stainless steel

How to distinguish 201 stainless steel from 202 stainless steel




What is the actual difference between 201202 stainless steel?





How many acres is 100 meters multiplied by 200 meters


1 m2 = 0.0015 Mu
100 m * 200 m = 20000 m2 = 30 mu