stainless steel bar including hot working bar and cold working bar stainless steel round bar 1.material grade: 200 series-201 ... liquid--cold drawn--polished by automatically machine--cutting into pieces--checking quality--package4.surface:black,pickling,polish,milling, ... 1mm-500mm6.application:the SS round bar is widely used in chemical, shipping,architecture,machine-made ,household products industry ...