... 316 Stainless Tool Steel Bar(Round,Square,Angle,Flat,Channel,Hex) Specifications 1) Standard : GB ... Grade: ASTM3163. Diameter: 2mm-300mm4. Shape Manufactured: Flat Bar, Square Bar, Round Bar, Hex Bar,Channel ... customers' request6. Surface finish: 2B, BA, Hair Line, No.1, No.4, Mirror Finish7. Techniques: ... steel bar (round bar , angel bar, flat bar)Zoomsco Group produces stainless steel BAR\SHEET\WIRE ...