PU Sandwich Panel is composed by two layers of weatherproof colored steel and injected the expanded polystyrene in middle.      
1)Item: Rock Wool Sandwich Panel
2)Model:970(for Roof)
3)Thickness for Glass Wool: 50mm,75mm,100mm
4)Thickness for steel sheet: 0.3mm-0.5mm
5)Length: any length we can do according to your request
6)Length tolerance: +/-5mm
7) Glass Wooldensity: 35-40kg/m3
8)Character: Light in weight,heat insulation,competitive in price
9)Application: Roofs for Warehouse,gymnasium,exhibition halls,storage

Sandwich Panel,PU Sandwich Panel,Polystyrene Sandwich Panel,Polyurethane Sandwich Panel,Sandwich Board