300A Welding Earthing Clamp, Electric Ground Clamp outstanding quality and competitive price easy to handle 300A Welding Earthing Clamp, Electric Ground Clamp material : aluminum, brass , plastic , copper or steel is according to your request.300A, 500Aproviding differen style earth clampeasy to handle and durable use OEM is availableif you want to know more information, please contact us.