... cooling coil Material: copper, aluminium, galvanized plate.Copper pipe: diameterΦ7, Φ7.94, Φ9.52, Φ12.7mm, etc. inner grooved or smooth tube ... data sheet Series 1Series 2Series 3Series 4Series 5Tube DiameterΦ 9.52Φ9.52Φ7Φ 5Φ 12.7Hole Space(mm)2525.42119.531.75Row ... .001.20~4.001.20~2.21.20~2.03.00~7.5 Besides the specification above we can also manufacture it ...