1.  Hollow brick: by clay coal gangue or fly ash as the main material, the hole is larger, the hole rate is greater than 35% of the sintered hollow brick, used for retaining structure.

2.  Block: concrete hollow block, aerated concrete block, silicate solid block.

3.  Concrete small hollow block: (note: bearing) it is made of ordinary concrete or light aggregate concrete, size: 390mmX190mmX190mm. Hollow rate from 25% to 50%, commonly referred to as "concrete block or block.

4.  Solid block: fly ash silicate, processing technology is similar to fly ash brick, main specifications: length 880mm, 580mm, thick 190mm, high 380mm.

5.  Aerated concrete block: made of aerated concrete and foamed concrete, due to light weight, and can be made into various sizes according to the requirements of use, but also can be cut in the site, so it is widely used in the maintenance structure of civil buildings.