Mesh Coating is made of aluminum or stainless plate as material. The pore sizes are directly proportional to the wall thickness of the plate. How big If a pore is desired, use a thick section to increase the resistance in the plate. Generally, 6 cm width and 2.5 cm height pore cavities are preferred. For this pore gap, the wall thickness should be at least 2.5 mm. Mesh coverings are placed in aluminum frame and assembled or rear costruction can be created and can be assembled from the pore parts.