1. hot rolled , cold drawn 2.polished procedure, various sizes,etc., 1.material grade: 200 series-201,202,200Cu,201Cu 300 ... --hot rolled into black surface--pickling into acid liquid--cold drawn--polished by automatically machine--cutting into pieces--checking ... have large stocks,diameter from 1mm-500mm6.application:the SS round bar is widely used in chemical, shipping,architecture,machine-made ...