... , aluminium, galvanized plate.2. Copper pipe: diameterΦ7, Φ7.94, Φ9.52, Φ12.7mm, etc. inner grooved or smooth tube.3. Aluminium foil ... of Tube Smooth Tube, Inner Grooved Tube Smooth Tube, Inner Grooved Tube Smooth Tube, Inner Grooved Tube Smooth Tube, Inner Grooved Tube Smooth Tube, Inner Grooved TubeFin SurfaceLouver Fin,Corrugated ...