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Geekcreit 30pcs 50x70mm FR-4 2.54mm Double Side Prototype PCB Printed Circuit Board
Specification: Grid: 0.1' (2.54mm) Thickness: 3.2mm(30pcs) Hole diameter: about 1mm The diameter of 4 large positioning holes: 4mm Material: FR-4 (glass fiber) All holes are plated through Both sides are identical Dimension Hole(column x row) Quantity 50 x 70mm, 1.97' x 2.76' 24 x 18 30 Package included: 30 x FR-4 double side prototype PCB printed circuit board 50x70mm