... Surface: Bright, Polish..... Technics: Hot-rolled..... Certificate API and ISO MOQ 5ton product:stainless steel round bar Grade: 201, Y201Cu, 202,303 ... 410,420,416,430,430F,431 etc. 2. Technics: Hot-rolled, Hot-forged,Cold-drawn, Centerless Gringing 3. Surface: Peeled, Bright ... , Polish 4. Diameter range: Hot-rolled bar : 5.5-110mm Hot- forged bar: 110-400mm Cold ...