What they are
Gerber files are a common standard for describing PCB copper, solder mask, silkscreen, and related layers for fabrication. Assemblers usually need Gerbers plus a BOM and centroid/pick-and-place data.
RFQ tip
Send a complete package: Gerbers (or ODB++), BOM with manufacturer part numbers, assembly drawings, and test requirements. Incomplete packs produce incomplete prices.
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