... zinc-plated steel sheets , color-coated steel sheets with specific core material. the thickness of steel sheet is 0.26mm-1.0mm ... . Width:950mm,980mm ,1000mm ,1200mm;2)Core Materials Options: Polystyrene(EPS), Polyurethane(PU), and Rockwool Thickness: ... neednt repeated fitment). It is a new type protection structural material congregates bearing, heat preservation and water resistance2.b)PU ...