C1037 Unlucky invasion!

In half a day's time, he had almost used up all the raw materials. In exchange, Lin Dong had only failed ten or twenty times, so if he were to refine these ingredients into a level 16 mechanical guard, it would not even be a problem for him to refine forty to fifty of them!

"Where did it go wrong?" Lin Dong thought, he felt that he was a little bit lacking every time he refined it