... 303Cu,304,304L,304Cu,316,316L,310,310S,309 400 series-410,416,420,430 stainless steel round bar2.standard:ASTM ... :black,pickling,polish,milling,peeled, etc.,5.common sizes we have large stocks,diameter from 1mm-500mm6.application:the SS round bar ... is widely used in chemical, shipping,architecture,machine-made ,household products industry etc., stainless steel round bar7.samples ...