... " material:stainless steel certificate:ISO9001 and bv stainless steel 180 degree elbow Stainless Steel ElbowStandardASME SA403,BS16.9,GB12459,EN,DIN,JISMaterial304 ... , etc.Sizes1/2''~50''(DN10~DN1200)Wall ThicknessSch5X~SchXXSBend Degree45°,90°,180°TypeElbow, reducer, cross, pipe holder, manhole cover, stub, ... 48'')ThicknessSCH5~XXSOur company certificate:contact way: stainless steel 180 degree elbow