C284 I'm Wearing a Building on My Hand

"I don't know if you guys have noticed the black bracelet He Yutang is wearing." Que De said, "That bracelet was made by Source Ore, guess what rank the Source Ore is at."

Que De was puzzled.

"Black Source Ore?" Fu Pingtao frowned, "Variant?"

Source Ore s of Three Layers Heaven World were divided into ten stages according to their quality, and each stage was further divided into three grades