... steel certificate:ISO9001 and bv 22.5 degree stainless steel elbow Stainless Steel ElbowStandardASME SA403,BS16.9,GB12459,EN,DIN,JISMaterial304 ... ,ANSI B16.9, ANSI B16.28, EN10253-2, EN1092-1,JIS B2313,DIN2605,Stainless Steel 304, 304L, 310S, 309S, 316, 316L ... Joint Stainless Steel Reducer StandardDIN 2527,2573,2576,2642,2633,JIS B2311,ASME 16.9Material304, 304L, 310S, 309S, 316, 316L, 317 ...