Literature Reference: The city's iron urn stands tall with strong crossbows, while willows shade the red towers full of dreamy clouds. Source from 'Two Poems on Runzhou II'.
铁: "Jianying," when used in personal names, conveys the essence of resilience and steadfastness.
瓮: A pottery vessel designed for holding and storing items, characterized by its prominently large belly.
Meaning: The iron urn symbolizes strength and solidity, representing an unshakable and steadfast character.