... earthquake, anti-agingLight weight: 33kgs/sqmEasy for installation Water-proof, fire-proof, anti-crack, anti-earthquake, anti-agingLight weight: 33kgs/ ... of new green andenvironmental protection board with fireproof and moisture resistant ability. Shenggang fireproofing magnesium oxide board is produced with the ... use this kind of building materials, whithout cement, without steel, without brick.