Ground Clamp for welding, Earth Clamp, Clamp high quality and competitive price durable and portable good insulation Ground Clamp for welding, Earth Clamp, 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.