... 75mm/100mm/120mm1) composed of 2 layers of weatherproofcolored steel and jetted hard Forms of polystyrene between 2 layers(fireproof ... buildings, storages ,exhibition halls,etc3) installation is convenient and flexible without the large –size4) heavy load bearing capacity: high ... : 50/ 75/ 100/ 120/ 150mmCore density:120kg/ m3Double steel sheet color: RAL standard, gennerally ocean blue,white-gray, red ...