Item:elbow fittings Material:A234-WPB.A420-WPL6.A234-WP12.A234-WP11.A234-WP5.A403- WP304.A403-WP304L.A403- WP316.A403-WP316L etc. Bending Radius (R): R=2D 3D 4D 5D 6D 7D 8D 9D 10D Bending Angle:15,30,45, 60, 90,135,180, also could manufacture according to the angles given by the clients. Straight Length(L): The length between two ends general from 300mm-1500mm, and also can produce according to the clients' requirements. Outer Diameter (D): Up to D1620mm Thickness(T): Up to T120mm End Bevel: According to the bevel of welding pipe fittings construction.