... and competitive price Fiber cemnt sandwich panel, light weight concrete sandwich panel1. Composition: Core materials: cement, EPS, and fly ... ash core Surface materials: fiber reinforced calcium silicone board or cement calcium silicone board2. Specification ... 610mm X (50, 75, 100, 120,150,180mm) fiber cement board on both sides: 5mm, 6mm, 8mm 3. Usage ...