Stainless Steel Bars Material: 304, 301,302,310,etc Dia.:1.0-103mm Surface: Bright, Black,Annealed Shape: Round, angle, hexagon, square, etc. Grade: 301,304,303,316,316 L, 304L, 321,2520,201,202 and so on Standard: GB: GB/T14975-2002, GB/T14976-2002, GB/T13296-91 American Standard: ASTM A312/A312M, ASTM A213/213A, ASTM A269/269M

