Manufacturers direct : the standard single double Universal board, plastic plate epoxy plate (5 × 7 × 9 9 x 15 10 x 22 12 x 18 15 x 18 13 x 25 18 x 30), copper (12 x 18 15 x 20 20 x 30) Photographic plates (10 x 15 15 x 20 15 x 30 20 x 30 30 x 40) units (CM) thickness (1.2 1.6)
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