Concrete is a natural, breathing, recyclable composite material. It consists of sandstone as aggregate and cement as a coagulant, it will be affected by human factors such as weather, temperature, humidity and natural factors like material mix proportion, cement selection and curing conditions etc. The product retains the original finish and the pore texture after demolding. The constituent materials are the mixed of concrete and building recycling waste residue (10-50%). No-environmental gelling agent such as resin is added. Bentu insists on pursuing nature and pureness.

there is no denying that pores are the nature of concrete. During the pouring process, the air was brought into the concrete and left on the surface of the concrete after demoulding in the form of special pores. They come in all shapes and sizes.