... copper belt, was spiral, the film from a 3.2mm (R), 4.2mm (M), 6.5mm ( T), heat transfer media for the ... the temperature below 250 °C. The UII expressed methodUII-2 R × 24-7878-inch long tube surfaceThe surface of the root ... tubular construction characteristic table of UII radiatorrib piece characteristic, the pattern, the piece thick, the piece high, the piece distance, Characteristics ...