... 1.EPS PU rockwool,metal. 2. cheap, economical building material 3.used for dorm, office, warehouse, fence, ... color can be blue, red, white or customized;) Material of corePolystyrene(EPS) polyurethane(PU), rockwoolAdvantages1. Light weight,Very easy ... roof and wall panel in warehouses, factories, exhibition halls, prefabricated houses, container houses, steel structure insulation material, and other ...