... angles Size:25*25*3-100*100*10 Surface:pickling or black Standard:AISI,ASTM,GB,JIS,BS,DIN stainless steel angle ... ,410,410 S, 416,420,420 F.Standard: AISI, ASTM, GB, JIS, BS, DINUse: machine manufacture, vehicles, ships, construction, chemical industry ... for more information, if you are interested in our products. GB 304 stainless steel angle bar