The part was marked using a 20Watt Fiber Laser Marking System using a 160 mm lens. The part was marked with both a light etch and a dark surface mark. The light etched marks had a cycle time of 0.275 seconds and the dark surface marks had a time of 1.86 seconds. If only a light etch is needed the use of a 10 Watt laser is recommended, but a 20 Watt laser will be needed for the dark surface marks. The final marks have been circled with a black marker as requested.