EPS roofing wall sandwich panels 1.nice water-proof character ... for PPGI,GI,corrugated steel sheet and EPS sandwich panels sincere 1993 with a great reputation. Both ... Material the sandwich panel thickness50,75,100,150,200mmVolume density 8-20kg/m3the sandwich materialEPS,rockwoolthe width950mm,1150mmusingas wall or ... in china Good price of roofing Sandwich panel with more color choices--Factory