Speedring is a beryllium vendor facility from
1971-November 22, 2013 and February 13, 2015-May 29, 2015
so workers are eligible to file for Part B claims.
Speedring did work using beryllium for Rocky Flats, Sandia National Laboratory, Idaho National Engineering Laboratory and Oak Ridge National Laboratory. There was another Speedring facility in Detroit, MI.
DOL provides Part B statistics on the Speedring.