Efco-Edwards Vacuum Metallurgy
1956 Joint venture company formed by Edwards High Vacuum and Efco to offer complete metallurgical installations[1]
1957 Developing a process to offer metals and alloys at a stage between true vacuum melting and simple degassing; useful for high quality castings of high alloys where it was impracticable to contain the mold in a vacuum[2]
1958 Agreement with AEI's subsidiary Birlec to form a joint venture Birlec-Efco (Melting) to design and manufacture electric furnaces for the ferrous and non-ferrous industries, and smelting furnaces and induction heating equipment[3]