... material: rice straw, saw-dust, bagasse, weeds, fly-ash, Volcanic Ashes.Products: partition board, roof panel, tile, door, window, frames and lines, decorative ... -free, green and environmental protection;2 Good fireproofing characteristic, nonflammable material A grade, its fire-resistantlimit has reached more than 3 ... beings.7 Can resist earthquake more than 8 magnitude. Ceiling decorative material