components and components used to produce solar panels; for the medical market comprise components and assemblies for proton beam accelerators for cancer treatment; and for the nuclear market consist of commercial reactor internal components and temporary heads, spent fuel storage and transportation canisters and casks, and material handling equipment. The company also offers aircraft carrier steam accumulator tanks, DDX destroyer prototype propulsion equipment, gun and weapons handling equipment, submarine sonar system components, and primary shield tank heads and foundations for the defense market; vacuum chambers, food processing equipment, chemical processing equipment, and pressure vessels for the industrial market; and delta rocket precision-machined fuel tank bulkheads, F-15 special equipment pods, and various other components, fixtures, and tooling for aerospace market. The company was founded in 1956 and is based in Westminster, Massachusetts.