Inquiry (采购产品): Canal Concrete Liner relief valves Trying to locate a manufacturer for relief valves that are installed in concrete structures to relieve exterior pressure due to high ground water. **** Hidden Message ***** Dee Jaspar 93308 Company: Dee Jaspar & Assoc., Inc., Civil Engineers E-mail: djaspar@djacivil.com **** Hidden Message ***** djaspar@djacivil.com
