... steel sheet, salinization steel, and embossed aluminum. 2)Quick-freezing cold storage can reduce the thermal conduction due to temperature ... to achieve perfect efficiency. 3) The insulation board of quick-freezing cold storage made of rigid polyurethane and polystyrene composite reperfusion ... (1 <=0.024Kcal/mhC). 4) The thickness of quick-freezing cold storage specifications: 60,75,100,120,150,180 mm ...