Upcoming Shows Aquastore tanks – the premium brand in liquid storage for longevity and chemical resistance.We have supplied over 16,000 covers in more then 90 different countries.Since 1893, CST's PetroTec tanks have been the leader in petrochemical storage tanks including API-12B and API-12F monogrammed designs.CST aluminum specialty covers have been designed to cover some of the largest water reservoirs as well as non-standard shapes.CST Weaver Reclaimers have been performing in industrial applications since 1962.