... lock+steel 2.speical for walk in cold room 3.PU density>40kg/m3,export over 30 ... color steel panel,widely used in house,freezing house,clean room,garage door,roof ,wall,antifire,sound abosrbing etc ... panel,PU cam lock panel.Thickness of cold room panel Application temperature50mm Temperature 5°C or above75mm Temperature ... than 6.5m.it can make small cold room,panel's thickness is 75mm,100mm,120mm,150mm, ...