EN 420 stainless steel channels 1. grade: 200 , 300 , 400 series . 2. size: 40x20x1.79 - 200x100x35.8mm 3. ISO, BV,SGS EN 420 ... stainless steel channels1. grade: 201 , 202 , 301 , 302 , 303 , 304 , ... as ss round bar , stainless steel flat bar , stainless steel angle bar , stainless steel channel bar , stainless steel hexagonal bar in 200 , 300 ...