Manufacturer of municipal and industrial liquid storage tanks. Bolted and welded storage tanks are available in epoxy-coated carbon steel and stainless steel in capacities of 4,000 to 2,400,000 gallons. Bolted storage tanks have an option of galvanized steel. Columbian TecTank™ manufacturers a wide variety of bolted and welded silos in sizes up to 900,000 ft3 (25,000m3). We provide dry bulk storage applications for the chemical, petrochemical, mineral, food, grain and plastics industries. Will design a storage tank, domes, or silo to meet the specified codes and recognized standards.