It seems to be equivalent to:

A sword is forged from stubborn iron

A beautiful jade is cut from its ugly raw material

Interpretation:

< p> The sword versus the beautiful jade, one is masculine and upright, the other is soft and delicate, gold and jade are a good match. Refined into fire, it overcomes gold, and carved into gold, it overcomes earth (stone is earth in the Five Elements). Stubbornness versus ugliness, stubbornness is on the inside and ugliness is on the outside. Iron versus pure is also gold versus earth in the five elements. It's original and original, and it fits perfectly.