OOO "CTC 21" carries out activity on manufacture keramzitobetonnyh blocks. Products are certified in accordance with GOST 6133-99. Production capacities allow to produce more than 5 million units per year. High quality (strength, correct geometry, low thermal conductivity, etc.) is a distinctive feature of our products. The products are shipped by our vehicles in the Tula, Moscow, Kaluga, Ryazan, Oryol region, city of Moscow, also available for pickup. Working seven days a week.