... density>40kg/m3,export over 30 countrie PU sandwich panel for cold room focus on researching and ... PU sandwich panel: PU cold storage panel by continous line,PU wall panel,PU roof panel,PU cam lock panel.Thickness ... 50mm,75mm,100mm,120mm,150mm,180mm,200mm. No2.uncontinous line,its can make PU cam lock panel, ... 5m.it can make small cold room,panel's thickness is 75mm,100mm,120mm,150mm,180mm. The detail ...