Picture: 5/10PCS 5x7/7x9CM DIY Welding Training Prototype Paper PCB Experiment Matrix Bakery Universal Circuit Board Two-Connected Holes
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5/10PCS 5x7/7x9CM DIY Welding Training Prototype Paper PCB Experiment Matrix Bakery Universal Circuit Board Two-Connected Holes

Variants:
Size: 7x9cm, Color: 5PCS,

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