https://www.duodrive.co.uk/
Duodrive's end-to-end Performance Engineering – Contra-rotating Electric Propulsion for MARINE
https://www.cambridgescientific.com/product/navac-duodrive-dd65-vacuum-pump
Navac DuoDrive DD65 Vacuum Pump | Cambridge Scientific
DuoDrive is a dual-stage, oil-sealed rotary vane vacuum pump equipped with a traditional AC motor. True to its legacy, the DuoDrive has been coined as the...
vacuum pumpnavacduodrivecambridgescientific
https://www.nord.com/en/services/documentation/flyers-brochures/details/s5010.jsp
DuoDrive(S5010) | NORD
DuoDrive - S5010 - -
duodrivenord