越南采购需求：黄铜带、黄铜箔、铜角、铜槽、铝青铜、硅青铜

Could you please provide a detailed quotation for the brass ingots that I inquired about? Specifically, I'm looking for pricing, availability, and any bulk order discounts you may offer. Additionally, please include specifications related to the composition, including the exact percentages of copper and zinc, as well as the contents of iron, aluminum, manganese, nickel, and tin. This information is crucial for our evaluation. Thank you!