Most white-grade components require only 100 units of iron ore to craft, and then from Level 1 to Level 2, require 100 units of iron ore, and from Level 2 to Level 3, require 200 units of iron ore.
This way, each level up requires an additional 100 units of iron ore.
As for most green-grade components, crafting requires 500 units of iron ore, then from Level 1 to Level 2 requires 200 units of iron ore, and from Level 2 to Level 3 requires 400 units of iron ore.
Each level up increases by 200 units of iron ore.
Of course, it's not absolute.
Some special components, like "Wagon Steel Armor" and "Wind-Fire Wheel," require more iron ore for crafting and upgrading, especially "Armor," which is the most resource-intensive component he's seen.
To this day, he hasn't even seen this component's Supermodel Effect, nor does he know when he might be fortunate enough to see it.
It's truly resource-expensive.
...
