... 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 ... and roof;For laying the bedding under the floor for the functions of heat insulation,dampproof and ... 900 600,900,1200 600,900,1200 Length of Board(mm) 1200,1250,2450,2500 1200,1250,2450 ...