... 33kgs/sqm. Easy for installation. low cost. Water-proof, fire-proof, anti-crack, anti-earthquake, anti-agingLight weight: 33kgs/ ... sqmEasy for installation Water-proof, fire-proof, anti-crack, anti-earthquake, anti-agingLight weight: 33kgs ... 2 Good fireproofing characteristic,nonflammable material A grade, its fire-resistantlimit has reached more than 3 hours. 3 Good ...