... ,310,310S,309 400 series-410,416,420,430 stainless steel round bar2.standard:ASTM A 276,A484,A564,A581,A582 ... into acid liquid--cold drawn--polished by automatically machine--cutting into pieces--checking quality--package4.surface:black,pickling,polish ... , shipping,architecture,machine-made ,household products industry etc., stainless steel round bar7.samples are available,pls feel free to contact with ...