panel sandwich teja 1.Low water absorption 2.high hardness, good anti-corrosion 3.good thermal insulated panel sandwich teja the sandwich material can be EPS,rockwool,glasswool,etc.sandwich panel for roof, width:960mm or 980mm,sandwich panel for wall,width:950mm or 1150mm,thickness:50,75,100,150,200mm density:7-20 kgs/m3, steel sheet:0.2-0.6mmsandwich panel for roof and wallLength:unlimited,<12m ...