Solid brick and clay brick which is expensive
Because the sintered clay brick belongs to the material which destroys the cultivated land, the national policy restricts the use and is forbidden to use the standard brick. But it can be used in the base part.
Red brick generally refers to sintered clay bricks. Generally divided into standard brick (Shi Xinzhuan), porous brick (KP brick), hollow brick (KM brick) and so on.
