1,Green prefab building system; 2,Time and labor saving; 3,Easy assembly; 4,Flexible design; 5.Higer space efficiency CharacteristicGalvanized steel or powder coated steel work as the major part of structure which is firm and durable, it has quite good capacity to resist corruption.The main material of the wall, roof is light and strong. It is produced by injected EPS, PU or rook wool between 2 ...