stainless steel 180 degree elbow size:1/2"-80" material:stainless steel certificate:ISO9001 and bv stainless steel 180 degree elbow Stainless Steel ElbowStandardASME SA403,BS16.9,GB12459,EN,DIN,JISMaterial304 ... Degree45°,90°,180°TypeElbow, reducer, cross, pipe holder, manhole cover, stub,clamp,union ,valve etc Stainless Steel Flange StandardsASTMA182,ANSI B16.9, ANSI ...