C87 Production Technology of Storage Ring

What was an interspatial ring? It was a storage ring. In Zhuo Gui's memories, refining a spatial ring required at least dozens of precious materials, as well as people who had comprehended the rules of space.

The comprehension of the laws of space was not something that an ordinary person could comprehend. Only an Immortal Emperor would be able to gain access to it.

Moreover, the Spatial Rocks