... Aluminum etc.2) Performances: high-efficiency, energy-saving, endurable in use,eco-friendly and materials-saving.3) Processes: Extruded processes, no ... coil tube, dual finned coil tube etc.7) Widely used in petroleum industry, petrochemical industry, metallurgical industry,power industry, food, ... according to drawings and/or samples.10) Sold well in U.S.A, Germany etc.Packing:Outside: Plywood sea ...