Dorr-Oliver H-20 nozzle centrifuge, 316SS.
Dorr-Oliver CH-30 Merco nozzle centrifuge, 316SS.
Dorr-Oliver BH-30 Merco nozzle centrifuge, Ferralium 225.
(2) Dorr-Oliver PCH-30 Merco nozzle centrifuges, 316SS.
Dorr-Oliver B-30 Merco nozzle centrifuge, 317SS.
