Hi Sunil,
you must create a Smartform in English Language
and maintain language translations for Titles using SE63 in different languages ( Chinese, Japanese, Korean) in respective language Key
and while Generating Shop paper, system by default will pick the Plant language which must be maintained specific to country (T001W-SPRAS)
there is no specific code is required
ensure SE63 language translations and Plant level language (T001w-SPRAS)
rest will take care by program
thanks
santosh