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UL marking on previously used production files and date code

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UL marking on previously used production files and date code

10*******8A

2025-11-05 21:13 PM

Hi,


If an order placed with previously used production files (workin files) from a different fab house, can JLCPCB delete and add the correct UL markings? If so, than what's to correct way to note that to your engineers? eg.: leaving a PCB remark.


Furthermore can you guys add a date code in WWYY format next to the UL marking if noted on PCB remark?


Many thanks,

Peter