Subject: Inquiry for Automated Gold Refinery Unit

Dear Sir

We are interested in acquiring the smallest automated gold refinery unit for our jewelry factory, with a capacity of 500 to 1000 grams.

Could you please provide us with the following information:

1. Unit price, with and without an air filter.
2. Gold purity percentage after refining.
3. Time required to refine 500 grams.
4. Cost of aqua regia and any other materials needed to refine 500 grams of 18-karat gold to 24-karat gold.
5. Estimated delivery time.
6. Installation costs by your engineering team.
7. Details on how the unit will operate automatically.

Thank you for your assistance. We look forward to your prompt response.

Best regards,
David Parker