... .gloss retention 3.various colors 4.various specifications,wide usage EPS Sandwich PanelsComponents:1) Preservative coating2) Painted steel panels(from 0 ... (combining the steel panels with the core panel)4) Insulating EPS core panel (thickness:50mm,75mm,100mm,125mm,150mm; Density: from ... quality, 7*24h warmest service adn the most competitive price ! EPS Sandwich Panels