Burns Stainless, LLC. wants to sell you only the highest quality products. On occasion, we have products that do not meet our quality standards. We sell these bends with slight ripples as B-Grades. If a ripple can be felt, we grade that as a "B". Below are images of two different B-Grade bends. The first image is typical of a bend that we consider a B-Grade. The second image is of a bend that is "worst case scenario". Anything with more ripples than this is considered a "C-Grade" and we scrap them out.