ASTM A234WPB Carbon Steel Elbow/Bend 1.Ultrasonic Inspection of ASTM A234WPB Carbon Steel Elbow/Bend 2.The size inspectiong of ASTM A234WPB Carbon Steel Elbow/Bend 3.the magnetic powder inspection of ASTM A234WPB Carbon Steel Elbow/Bend 4. The wall thickness inspection of ASTM A234WPB Carbon Steel Elbow/Bend 5. The chemical component inspection of ASTM A234WPB Carbon Steel Elbow/Bend 6.The hardness inspection of ASTM A234WPB Carbon Steel Elbow/Bend 7.The tensile testing of ASTM A234WPB Carbon Steel Elbow/Bend 8. The impact test of ASTM A234WPB Carbon Steel Elbow/Bend