Hollow blocks have a free space of more than 25% and are produced in different shapes and sizes. Hollow blocks are exemplary masonry units used in the construction world. There are different types of shapes and sizes used in construction works such as factories, building walls, retaining walls and office buildings. Hollow blocks are famous in the construction industry because of the many benefits it offers.

Hollow block molds (moule parpaing) are products manufactured exclusively for the customer. Hollow block molds  (moule parpaing)  are specially designed according to the sizes of the desired product. Besides the outer sizes, the thickness of the inner cavities is also important.