... 1.EPS PU rockwool,metal. 2. cheap, economical building material 3.used for dorm, office, warehouse, fence, ... blue, red, white or customized;) Material of corePolystyrene(EPS) polyurethane(PU), rockwoolAdvantages1. Light weight,Very easy to install, disassemble ... halls, prefabricated houses, container houses, steel structure insulation material, and other industrial and civil buildings. cheap EPS PU ...