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Last name Wangpingchai (Wangpingchai ) , in the entire world, is a very rare surname. The cognomen Wangpingchai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wangpingchai | Thailand |
Pheeraya, Chuthamat, and Kornnaphat