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If you have any questions about the design details, or the confirmation of the production process details, please feel free to contact us, tell us the problem you want to confirm, our engineers will confirm and reply to you as soon as possible. Although we are not professional substrate designers, but we are a supplier of production substrates, we produce many kinds of substrates, so we are very familiar with the design details and process production technology, I believe we can help you at any time, which is also our pleasure