Empty block 20 Our products Empty block 10 Empty block 12 Empty block 15 Empty block 25 Technical specifications: Dimensions (cm) Length: 40, Width: 20, Height: 20 Weight (kg/m²) = 20 Density (kg/m3) 1150 Fracture stress (net area) 42 kg/cm2 35 kg/cm2 absorption 6% colors
