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20pcs 5x7 4x6 3x7 2x8 cm 5*7 4*6 3*7 2*8 double Side Copper prototype pcb Universal Board Cave plate Circuit board Blue

USD 2.40

20pcs 5x7 4x6 3x7 2x8 cm 5*7 4*6 3*7 2*8 double Side Copper prototype pcb Universal Board Cave plate Circuit board Blue

Description
Specification
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