... out the iron, manganese steel, chrome steel, aluminum, copper and other metallic elements mixed in non-metallic materials. Beside ... are closed.GJT-2F metal detector machinecomponents: Body and Control box1)Control box technical specificationsOutside measurement: 340mm ... metallic materials bigger than 15mm, including iron, aluminum, copper, stainless steel, manganese steel, chrome steel, etc.105GJT ...