... 2.low cost. 3.easy for installation. 4.quick in installing 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 ... compounded with the above three kindsof materials under the non water-in process, It is a kind of new green andenvironmental ...