... 300mm,250mm,200mm 150mm,125mm,100mm,they could be used for industry building and common building, they ... , mixing calcium material,lime,cement water to a special slop, then add the aluminum powder and ... the aluminum powder and the special slop have a chemical reflect, then produce hydrogen to make the ... to curing, then cutting, steaming, last, there will become the light block, the porous rate is 70%-80%. ...