... ,760mm,820mm,840mm,880mm,900mm,950mm,980mm,1150mm Thickness of EPS 50mm,75mm,100mm Steel sheet thickness 0.18mm-0.80mm ... sandwich panel production process adopts the colored steel plate as surface board, and the core material is the self-extinguishing closed cell polystyrene ... Steel Structure Co., LtdMobile Phone: +86 13188988192 XGZ Low price EPS sandwich roof panel