Correct

铁打

/ tiědǎ /
Strokes

Definition

made of iron/strong as iron

Example

As an Adjective

iron-forged—unshakable; unyielding

1
Tiědǎ
铁打
de
的
jiāngshān
江山

unshakable state power

2
Tiědǎ
铁打
de
的
hànzi
汉子

unyielding man; man of iron/steel; man of iron will