cold room panel: 1.985mm width,length can do as ... 150,180,200mm 3.Fireproof degree:Class B Our PU panels have acquired "Chinese Green Environmental Protection Product" ... manufacturing of various polyurethane color steel panel,widely used in house,freezing house,clean room,garage door,roof ,wall,anti- ... steel can do as your order,the thickness of PU sandwich is 50mm,75mm.100mm.120mm,150mm,180mm,200mm. ...