... ,AAC,ALC building materials 2.ISO9001 certified Factory 3.Manufacturer in Qingdao ,China AAC blocks, ALC blocks, Building material ALC lightweight ... 600kg/m3 to control. 2 annual capacity 200,000M3. 3 set raw material proportion: cement 6.5%, raw lime 23%, flyash ... lime fly ash style aerated block raw material proportion Low cost of construction material AUTOCLAVED AERATED CONCRETE AAC block