The KDE rpm package for language support is named:
.
Code:
kde japanese support locales man pages OpenOffice
-------------------- ------- --------- ----------
kde-i18n-ja locales-ja man-pages-ja OpenOffice.org-help-ja
OpenOffice.org-I10n-ja
For Chinese support look for -zh, -zh_CN, -zh_TW and big5 in the package names.
Two font packages for chinese support are:
fonts-ttf-gb2312 and fonts-ttf-big5
In the KDE control center, you can add the language that you installed support for.
One gotcha to note. Also add english, so that the display goes back to english.
The language selection requestor changes to the language you are installing