Whilst with Llanelli he faced two touring Southern Hemisphere teams, the South Africans in 1931 and New Zealand in 1935.
Lang would remain unselected for his country for another four years, but in 1931 he played for Llanelli when they hosted the touring South Africans.
Lang ran out against the Springboks with his brother, Will, but ended the game on the losing side.
Led by Claude Davey and with the flair supplied by Cliff Jones, Wales beat Scotland at Murrayfield.
It was a memorable win for Wales in a match filled with drama, that saw Wales losing with ten minutes remaining and their hooker stretchered off with a broken neck, only for the Welsh team to rally for a narrow win.