pumice stone non-toxic, without harmful gas, no harm to human, qualitative light (2.5 cm thick every square metre weighs about 3 is 6 kg), high temperature resistant, encounters fire does not burn, not weathering, not aging, not decay, unaffected by moth decayed, not mildew, don't living mould, not soften deformation in water, washable, high mechanical strength, easy process, can use ordinary carpenter curium cut processing, can make all sorts of color, rich adornment effect, sound-absorbing good effect is very suitable for family homes, villas, bathhouse bath center, hotel, bar, teahouse, conference room, hall, airport lounge, railway station, bus station HouCheTing such indoor sound-absorbing, adornment embossment, TV setting wall anaglyph etc natural sandstone, artificial sandstone collection (resin sandstone), rocks, cement, gypsum etc advantages for the integration of pumice materials.