Sandwich panels are also called composite panels. They are composed of two layers of molded metal panels and polyurethane, rock wool, PU and other inner cores added between the panels. It is easy to install, efficient, and has good performance. It has different functions according to different inner core materials. It is a high-quality maintenance structure material. There are mainly three types of commonly used sandwich panels: rock wool sandwich panels（Fireproof, heat and sound insulation）, EPS sandwich panels（heat and sound insulation） and PU sandwich panels（Fireproof, heat and sound insulation）.
EPS sandwich panel