ELK RIVER, Minn.--(BUSINESS WIRE)--Cretex Companies (www.cretex.com) today announced it has sold its subsidiary, Cretex Concrete Products, Inc. (CCP), to HBP Pipe & Precast LLC, the former HeidelbergCement affiliate that operated under the Hanson Building Products name (HBP) based in Irving, Texas. Terms of the transaction were not disclosed. "Since 1917, Cretex has been largely defined by its top-performing concrete products business, earning a reputation for being the upper Midwest's lead