1)two layers of aluminum sheets 2)rock wool insulations 3)roof and walls 4)JIS/ASTM; ... wall panelGymnasium, warehouse, hospital, supermarket, shelter, commercial and industrial facilities8 Features of Pu foam sandwich wall panel1) Light ... m3Conventional colorAccording to customer's requestCharacterLight in weight, heat insulation, water resistant, green and environmentalUseFood(meat,vegetable,fruit, ...