5-40pcs PCB Board Prototype Board PCB Breadboard Blue 2x8/3x7/4x6/5x7/7x9cm Double Side Circuit Boards for DIY Soldering Project

5-40pcs PCB Board Prototype Board PCB Breadboard Blue 2x8/3x7/4x6/5x7/7x9cm Double Side Circuit Boards for DIY Soldering Project

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