... weight energy saving wall material taking calcium silicate board (fiber cement board) as face panel, cement, EPS, fly ash as core and ... partition of frame structure, steel structure, e.g. Used in interior and decorative partition of office building, hotel, motel, ... energy saving)7. waterproof, dampproof (no bead on wallboard surface in wet climate)8. acid-resistant, alkali-resistant, rot-resistant, ...