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Q:

Can metal core PCBs be designed with charged DIP components inserted through metal holes?...

yes. We are a professional manufacturer of metal core PCB circuit boards, and we have many years of production experience. You can see the details of our insulated hole aluminum substrate, which includes an introduction.
Q:

What other information needs to be provided besides files?

The quotation requires the following specifications: a) substrate, b) plate thickness, c) copper thickness, d) thermal conductivity, e) surface treatment, f) color of solder mask layer and screen printing, g) quantity
Q:

What documents should we provide?

PCB: Gerber files are better, (Protel, power pcb, PADs files), PCBA: Gerber files and BOM lists.
Q:

What is the minimum order quantity for aluminum substrates?

Our minimum order quantity for aluminum substrates varies depending on different projects, supporting a minimum order quantity of 1 pcs.
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