Brick->Hollow Blocks->20′ GT-ASM20 20’lik Asmolen Brick Dimensions (cm): 20x20x40 Weight (kg/piece): 9.00 Thermal Conductivity (λh) : 0.37 W/Mk Volume Weight (kg/m3): 562.5 The Flexural Strength : 150 kgf Height of Apron (min): 25-30 cm Volume (pcs/m2): 10 Volume (pcs/m3): 62.5