Literature Reference: 'Long' means to grind; 'Jin' refers to beautiful jade. Source from 'Shuowen Jiezi'.
砻: An agricultural tool used for removing rice husks, resembling a mill in shape, predominantly crafted from wood.
瑾: Jinyu. In names, it often symbolizes jade and virtue, representing an outstanding demeanor and noble character.
Meaning: Polished and refined like flawless jade, symbolizing perfection and value.