覆膜印刷电路基板

Tasks (1)

Resin Printed Circuit BoardItems

Rewards by difficulty

Easy

Vacuum Tube×64

Normal

Vacuum Tube×8

Expert

Vacuum Tube×2

Prerequisites

• 高压蒸汽真空泵3. 超低压时代(ULV)

Unlocks

• 基础电子电路3. 超低压时代(ULV)