If you want to obtain strong combat power in Black Myth Wukong, you can only obtain some powerful equipment and other methods through your own operations. If you want to know how to get Black Myth Wukong's iron sand, and use Black Myth Wukong to improve your combat effectiveness and make yourself stronger, then follow the editor of Source Code Network to take a look at this guide. I believe it can give you Answer.
The first piece of iron sand
First teleport to Xiaoxitian-Pishuang Road, walk along the road until you reach the fork in the road.
Go to the path on the right and you will encounter some enemies. After defeating them, you can get the iron sand.
The second and third pieces of iron sand
Teleport to Soul Holding Cliff Canglong understand. After entering, walk along Zhuilu and go left at the fork in the road.
When you reach the end, you can encounter the BOSS Little Li Dragon. After defeating it, you can get two pieces of iron sand.
The fourth piece of iron sand
Then go to the Earth Temple in Huangfengling, arrive at Shamen Realm, and open the Shamen Realm Earth Temple.
Click Buy on the Earth Temple page, and you can buy iron sand on the purchase page.