... competitive price prompt delivery stainless steel u channel sizes u shapped metalZCSSCO produces stainless steel hot rolled channel bar. we can polish the bar ... , GB/T707-1988, ASTM A276, A314, A479, A484, A564, A582, etc.Standards: 201,202,301,302,303,304,304L,309S,309H ... ,321,329,PH410,420,430,430F,431,446,904,904L,etc.Finish: Pickling, Sand-blasting, hairline, Polish, Mirror polish, Milling, Smooth ...