Which is better, wool iron grass steel or uzi steel?

Utz steel belongs to the crucible steel, is the world's first real man-made steel, around 400 BC, the Indians with the local iron ore supplemented with charcoal, green leaves, etc. with the crucible method was the first to create. Uzi steel happened to combine the perfect amount of carbon with iron, and the overall performance was far superior to the wrought and cast iron of the rest of the world at the time.

In the traditional steelmaking method, there is a "steel frying method," in which pig iron is first extracted from Longquan's unique Tiyinsha, and then melted and decarbonized with the pig iron. Decarburization degree can become iron or steel, and then made into swords. Because the words "fried" and "grass" sound alike, and the appearance of the refined steel is rough, so Longquan is locally called "grass steel". So Uzi steel is a little better than the grass steel.