CNC Machine ToolsChina Bend Carbon Steel Per ASTM A53 Grade B Type E Standard Weight Buttweld End 90 Degree Per Pipe Fabrication Institute Pfi Es-24 Per ASME B16.25 3 Diameter, Find details about China En10253 Elbow, High Press Elbow from Bend Carbon Steel Per ASTM A53 Grade B Type E Standard Weight Buttweld End 90 Degree Per Pipe Fabrication Institute Pfi Es-24 Per ASME B16.25 3 Diameter