The document discusses the development of a dull finish (DF) on 301L stainless steel sheets for use in metro car exterior panels. DF provides a uniform, non-reflective matte finish that facilitates easier fabrication and offers better corrosion resistance than other finishes like No. 4 or 2J. The key specifications for DF include a glossiness of 35±5% and surface roughness (Ra) of 4.5±0.5. The document evaluates different options for producing rolls with the necessary texture to create DF during cold rolling and considers factors like cost, finish uniformity and control over surface roughness. It also reviews texturing methods like chemical etching, bead blasting and laser processing and the facilities available in India to produce textured