... bar,hot rolled and cold drawn,surface settlements include black,picking,bright,drawn bench,mirrow polished. stainless steel flat bar1. ... ingots by AOD oven---hot rolled into black surface---picking into acid liquid(picking surface)---cold drawn ---automatically polished---cutting into pieces---making ... :thickness*width 2-10*50-300mm4.surface settlements:black,picking,bright,drawn bench,mirrow etc.,