... steel certificate:ISO9001 and bv stainless steel 180 degree elbow Stainless Steel ElbowStandardASME SA403,BS16.9,GB12459 ... ''~50''(DN10~DN1200)Wall ThicknessSch5X~SchXXSBend Degree45°,90°,180°TypeElbow, reducer, cross, pipe holder, manhole ... ST35, RST37, S235JR, Q235, SS400Sizes1/2" to 60" (DN8 to DN1500)Pressure Class150LB, 300LB, 400LB, 600LB, 900LB ... :contact way: stainless steel 180 degree elbow