... 3Heat Insulation 4Fire/Water Proof 5Fast/construction EPS sandwich wall panel, 1. Composition: Core materials: cement, EPS, and fly ash core ... X 610mm X (60, 90,120,150,180mm)3. Usage: Interior and exterior partition on steel or concrete structure building, For ... one sixth of the brick building Comparison of inner wall panel 75 and 120mm it will increase 12m practical area, for ...