... steam preservation are all lower than those of other board heat preservation materials and they have the characteristics ... ripple tile; For making up the heat insulation board in the refrige ration store house for cold preservation ... -68 78-100 Driving Motor Power(kw) 75-90 90-110 110-132 Thickness of Board(mm) 20-80 ... 900 600,900,1200 600,900,1200 Length of Board(mm) 1200,1250,2450,2500 1200,1250,2450, ...