แผงวงจรต้นแบบกระดาษ PCB ทดลองสากลเมทริกซ์ 5 * 7 เซนติเมตร 5 ชิ้น

5pcs 5*7cm 5x7 Prototype Paper PCB Universal Experiment Matrix Circuit Board Name: 5 * 7 universal board Substrate material: 94HB bakelite Number of holes: 432 Thickness: 1.2MM External size: 5 * 7CM (cm) Aperture: 1.0mm (mm. Error 500) Hole spacing: 2.54mm (100mil) (mm) Unified bakelite materials with consistent background colors. Newly opened mold. The board is flat and the holes are centered! We deal in wholesale and retail Feel free to contact us #5*7cm #5x7 #pcb #universal #board