C3334 There's a Back Door(part I)

Lin Hao was so angry that his teeth itched. He thought that the cost of the Protective Equipment was just a little more expensive than a king-grade weapon. But looking at it, the price was several times more expensive. However, Lin Hao had no choice but to refine it obediently. One reason was that Lin Hao had come for this. Secondly, the price of the raw materials was high