Tank Holding buys Dura-Cast, continuing growth plan Dura-Cast Inc. Tank Holdings Corp.'s acquisition of Dura-Cast Inc. of Lake Wales, Fla., is the 12th acquisition by the company in two years. North America's largest rotational molding company, Tank Holding Corp., has purchased Florida-based rotational molder Dura-Cast Products Inc., effective Feb. 8. "Dura-Cast augments an important part of Tank Holding's overall growth strategy, which is to strengthen our core tank business while enhancing leading positions in adjacent markets, where we can leverage our industry knowledge and expertise to create greater value for our customers," Greg Wade, CEO of Tank Holding, said in a Feb. 8 news release. "It also provides additional regional capacity for the Southeast markets."