iron walls and brass partitions

iron walls and brass partitions

Tiebi Tongshan, a Chinese idiom, Pinyin is ti ě B ì t ó ngsh ā n, which means a strong and reliable force. From "knight errant biography · knight errant circle".

The origin of Idioms

Qing Ganxing's "knight errant biography · knight errant circle" said: "these two big heads are my iron walls and Tongshan. Don't these little officials let me do it freely?"

Idiom usage

It is often used in figurative sentences.