ss sheet typically refers to"Stainless Steel sheet."Stainless steel sheets are flat-rolled steel products made from stainless steel,a type of steel known for its corrosion resistance,durability,and aesthetic appeal.They come in various grades including 200 series,300 series,400 series with the finishes like No.1,2D,2E,2B,2BB,BA,No.4,HL,8K mirror.Stainless steel sheets are used in a variety of applications, including construction, automobiles, kitchen appliances, and medical equipment.