... /m3,export over 30 countrie PU sandwich panel for cold room focus on researching and manufacturing of various polyurethane ... roof panel,PU cam lock panel.Thickness of cold room panel Application temperature50mm Temperature 5°C or above75mm ... less than 6.5m.it can make small cold room,panel's thickness is 75mm,100mm,120mm,150mm, ... distinguishing: less than 5 PU sandwich panel for cold room,freezer