... ASTM,GB,JIS,BS,DIN stainless steel angle barYong'ai mainly produces stainless steel round bars, hexagon bars, square bars, flat steel, angle steel and other stainless steel ... 431,410,410 S, 416,420,420 F.Standard: AISI, ASTM, GB, JIS, BS, DINUse: machine manufacture, vehicles, ships, construction, chemical industry ... information, if you are interested in our products. GB 304 stainless steel angle bar