... 11800mm6 Usage of Pu foam sandwich wall panel(1)-Roof(2)-Wall(3)-Cold room7 Applications of Pu foam sandwich wall panelGymnasium, warehouse, hospital, supermarket, shelter ... 11800mm6 Usage of Pu foam sandwich wall panel(1)Roof(2)Wall(3)Cold room7 Applications of Pu foam sandwich wall panelgymnasium, warehouse, hospital, supermarket, shelter ...