AAC Blocks ( Autoclaved Aerated Concrete - " AAC ") a unique and excellent type of building materials due to its super heat, fire and sound resistance, AAC blocks is lightweight and offers ultimate workability, flexibility and durability. Our products are manufactured by TCVN 7959:2011, that is suitable with standards in German DIN 4156, China GB 11968-2006 and other standards in Japan and US.