Material:1000series 3000sreies Application:Heater Parts Heat Exchanger Tube Aluminum Coil Tube1)Alloy: 1000,3000,series,and we can ... -80kgs/coil5) Equipment :From Germany:6) Types: Square tube, round tube, special pipe, straight tube, capillary tube and so on7) Different sizes available8) Can produce ... they can be used in fridge,freezeing and exchanger etc. round extroud aluminum coil tube