On 26 March 2011, Lang made his senior international debut in a friendly against Costa Rica in an experimental team that also saw Jin Jingdao, Lü Peng, Ma Chongchong, Ye Weichao and Zhang Xizhe make their first appearances in a game that ended in 2-2 draw.
Jin Yong | Jin | Jin Dynasty | Park Jin-young | Jin Dynasty (265-420) | Yeon Woo-jin | Sin-Jin Smyth | Jun Jin | Jin Records | Jin Dynasty (265–420) | Jin Dynasty (1115–1234) | Jin (Chinese state) | Hur Jin-ho | Emperor Yuan of Jin | Park Ye-jin | Park Hae-jin | Noh Jin-Kyu | Jin Se-yeon | Jin-Roh | Jin Mao Tower | Jin Jong-oh | Jin Jingdao | Jin (Five Dynasties) | History of Jin | Zhao Jin | Yu Jin | Yue Jin | Yoon Jin-yi | Yoo Jin-ryong | Xie Jin |