1.EPS PU rockwool,metal. 2. cheap, economical building material 3.used for dorm, office, warehouse, fence, factory,workshop Widely ... , white or customized;) Material of corePolystyrene(EPS) polyurethane(PU), rockwoolAdvantages1. Light weight,Very easy to install, disassemble and ... civil buildings. cheap EPS PU rockwool color coated steel plate Sandwich Panel colourbond for roof wall fence prefab house ...