This 10” X 7.5”X. part is made of .250Thick HRPO Hot Rolled Pickle Oil, .156 Thick HRPO Hot Rolled Pickle Oil and .563 Round C1018. The manufacturing operations are 2 Blank, 1 Pierce, 1 Form, 1 Machining, 2 Deburring, 2 Welding, 1 Degreasing and Zinc Plated