... ,GI,corrugated steel sheet and EPS sandwich panels sincere 1993 with a great reputation. Both side metal specification: steel sheet ... Material the sandwich panel thickness50,75,100,150,200mmVolume density 8-20kg/m3the sandwich materialEPS,rockwoolthe width950mm,1150mmusingas wall or roofMax ... ,boxing county,shandong province in china Roofing/Wall Sandwich panels with more color choices--Factory