Precision Castparts Corp. agreed to acquire Aerospace Dynamics International (ADI) from The Marvin Group for $625 million. ADI, a premier supplier in the aerospace industry, operates a wide range of high-speed machining centers. The Valencia, Calif.-based company has developed particular expertise in large complex components, hard metal machining and critical assemblies. According to PCC, the acquisition will expand its aerostructures product offering and role on next-generation aircraft. ADI employs approximately 625 people.