Ecotrend aac manufacturing contain a large number of micro-holes, with a dry density of 400~700kg/m³ and a thermal conductivity of 0.08~0. 18w/(m*k), Ecotrend AAC wall insulation ability is 3~4 times that of ordinary clay bricks , 4~8 times that of ordinary concrete, which greatly reduces the energy consumption of the building and is eco friendly.