... BLOCK CONCRETE BUILDING MATERIAL , SAND BRICK Feature:Light weight, Heat-proof, Sound-proof, Fire-proof. AAC BRICK , AAC BLOCK , CONCRETE BUILDING MATERIAL , SAND ... BRICKAutoclaved Aerated Concrete BricksLight weight, Heat-proof, Sound-proof, Fire-proofA3.5 ... : In BulkIF YOU HAVE ANY QUESTION, PLEASE CONTACT US! AAC BRICK