stainless steel angles Size:25*25*3-100*100* ... 'ai mainly produces stainless steel round bars, hexagon bars, square bars, flat steel, angle steel and other stainless steel products. Materials: 303, ... 304,304 L, 310,310 S, 316,316 321,430,430 F, ... L, 431,410,410 S, 416,420,420 F.Standard: AISI, ASTM, GB, ...