Originally, the company produced only foundry castings at the 106 East 20th Street plant, but expanded to producing machined parts in the 1920’s. A Machine Shop building was leased until 1969 when a new Machine Shop building was built at 401 West 23rd Street.
https://www.nasdaq.com/articles/metals-copper-advances-on-weaker-dollar-but-heading-for-weekly-loss
Over 100 Years Experience – Manufacturers of Bronze Bearings, Bushings, and Continuous Cast Bars Since 1913