From google images it looks like this PSU has an IEC C20 male connector on it meaning you would need an IEC C19 end on your cable. C19/20 is a higher amperage version of C13/14 which is what could be considered standard on a normal consumer PSU. Google C19 to whatever plug your 220v outlet needs and you should find the appropriate cable.
Appliance connectors: https://en.wikipedia.org/wiki/IEC_60320
North American connectors: https://en.wikipedia.org/wiki/NEMA_connector
Worldwide industrial connectors: https://en.wikipedia.org/wiki/IEC_60309
Worldwide standard connectors: https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets